Over the last few years, an emergent body of International Relations scholarship has taken an interest in the rise of global cities and the challenges they bring to existing geographies of power. In this article, I argue that a focus on race and empire should be central to this literature. Using the Grenfell Tower fire in London as a starting point, the article shows that global cities are part of a historical and ongoing imperial terrain. From London to New York, São Paulo to Cape Town, Singapore to Cairo, the ‘making’ of global cities has typically gone hand in hand with racialized forms of displacement, dispossession and police violence. Drawing on the literature on racial capitalism, as well as Aimé Césaire’s image of the ‘boomerang’, I show that these strategies build on practices of urban planning, slum administration and law-and-order policing long experimented with in the (post)colonies. By examining the colonial dimensions of what many assume to be a strictly national problem for the welfare state, the article thus reveals global cities as part of a much wider cartography of imperial and racial violence. This not only calls into question the presentism of scholarship that highlights the ‘newness’ of neoliberal urbanism. In demonstrating how global cities and colonial borderlands are bound together through racial capitalism, it also exposes the positionality of scholars and policymakers that seek to counter the violence of neoliberalism with a nostalgic return to the post-1945 welfare state. As the Grenfell fire revealed, the global city is less a new type of international actor or governance structure than an extension and reconfiguration of the domestic space of empire.

References

Abourahme, N ( 2018 ) Of monsters and boomerangs: Colonial returns in the late liberal city . City 22(1): 106 – 115 .

Google Scholar Crossref

Abu-Lughod, J ( 2014 ) Rabat: Urban Apartheid in Morocco. Princeton, NJ : Princeton University Press .

Google Scholar

Acuto, M ( 2010 ) Global cities: Gorillas in our midst . Alternatives 35(4): 425 – 448 .

Google Scholar SAGE Journals | ISI

Acuto, M ( 2013 ) Global Cities, Governance and Diplomacy: The Urban Link. London : Routledge .

Google Scholar Crossref

Alawadi, K ( 2014 ) Urban redevelopment trauma: The story of a Dubai neighbourhood . Built Environment 40(3): 357 – 375 .

Google Scholar Crossref

Alves, JA ( 2014 ) From necropolis to blackpolis: Necropolitical governance and black spatial praxis in São Paulo, Brazil . Antipode 46(2): 323 – 339 .

Google Scholar Crossref | ISI

Alves, JA ( 2018 ) The Anti-Black City: Police Terror and Black Urban Life in Brazil. Minneapolis, MN : University of Minnesota Press .

Google Scholar Crossref

Amar, P ( 2013 ) The Security Archipelago: Human-Security States, Sexuality Politics, and the End of Neoliberalism. Durham and London : Duke University Press .

Google Scholar Crossref

Ancien, D ( 2011 ) Global city theory and the new urban politics twenty years on . Urban Studies 48(12): 2473 – 2493 .

Google Scholar SAGE Journals | ISI

Angélil, M, Siress, C ( 2012 ) The paris ‘Banlieue’: Peripheries of inequity . Journal of International Affairs 65(2): 57 – 67 .

Google Scholar

Anievas, A, Manchanda, N, Shilliam, R ( 2014 ) Race and Racism in International Relations: Confronting the Global Colour Line. London : Routledge .

Google Scholar Crossref

Arabia, T ( 2017 ) Disaster at arm’s length: An interview with Richard Seymore . The Jacobin. Available at: https://www.jacobinmag.com/2017/06/grenfell-tower-fire-kensington-tories-labour-jeremy-corbyn (accessed 10 February 2019).

Google Scholar

Atkinson, R, Bridge, G ( 2004 ) Gentrification in a Global Context. London : Routledge .

Google Scholar Crossref

Atkinson, R, Bridge, G ( 2013 ) Globalisation and the new urban colonialism . In: Brown-Saracino, J (ed.) The Gentrification Debates: A Reader. London : Routledge .

Google Scholar

Back, L, Gilroy, P ( 2013 ) Husby and territorial stigma in Sweden . OpenDemocracy. Available at: https://www.opendemocracy.net/les-back-paul-gilroy-others-see-below/husby-and-territorial-stigma-in-sweden (accessed 8 February 2019).

Google Scholar

Barder, A ( 2015 ) Empire Within: International Hierarchy and Its Imperial Laboratories of Governance. London : Routledge .

Google Scholar Crossref

Bassel, L, Emejulu, A ( 2017 ) Minority Women and Austerity: Survival and Resistance in France and Britain. Bristol : The Policy Press .

Google Scholar Crossref

Bhandar, B ( 2018 ) Organised state abandonment: The meaning of Grenfell . Critical Legal Thinking. Available at: http://criticallegalthinking.com/2018/09/21/organised-state-abandonment-the-meaning-of-grenfell/ (accessed 28 September 2018).

Google Scholar

Binnie, J, Holloway, J, Young, C, et al . (eds) ( 2006 ) Cosmopolitan Urbanism. London : Routledge .

Google Scholar Crossref

Bogues, A ( 2015 ) Black Heretics, Black Prophets: Radical Political Intellectuals. London : Routledge .

Google Scholar Crossref

Booth, R ( 2018 ) Hundreds of thousands living in squalid rented homes in England . The Guardian. Available at: http://www.theguardian.com/society/2018/jan/28/hundreds-of-thousands-living-in-squalid-rented-homes-in-england (accessed 19 February 2018).

Google Scholar

Briggs, D ( 2012 ) The English Riots of 2011: A Summer of Discontent. Hampshire : Waterside Press .

Google Scholar

Brooker, N ( 2017 ) ‘Big capital’ by Anna Minton — who broke London’s property market? Financial Times. Available at: https://www.ft.com/content/82a1af1c-46cc-11e7-8d27-59b4dd6296b8 (accessed 19 February 2018).

Google Scholar

Camp, JT ( 2012 ) Blues geographies and the security turn: Interpreting the housing crisis in Los Angeles . American Quarterly 64(3): 543 – 570 .

Google Scholar Crossref | ISI

Camp, JT, Heatherton, C ( 2016 ) Policing the Planet: Why the Policing Crisis Led to Black Lives Matter. London and New York, NY : Verso Books .

Google Scholar

Capelouto, S ( 2014 ) Eric Garner: The haunting last words of a dying man . CNN. Available at: https://edition.cnn.com/2014/12/04/us/garner-last-words/index.html (accessed 12 February 2019).

Google Scholar

Carrozza, I, Danewid, I, Pauls, E (eds) ( 2017 ) Racialized realities in world politics . Millennium: Journal of International Studies 45(3): 267 – 510 .

Google Scholar SAGE Journals | ISI

Castells, M ( 2001 ) The Internet Galaxy: Reflections on the Internet, Business, and Society. Oxford : Oxford University Press .

Google Scholar Crossref

Césaire, A ( 2001 ) Discourse on Colonialism. New York, NY : NYU Press .

Google Scholar

Chakravartty, P, Da Silva, DF ( 2012 ) Accumulation, dispossession, and debt: The racial logic of global capitalism — An introduction . American Quarterly 64(3): 361 – 385 .

Google Scholar Crossref | ISI

Coulthard, G ( 2014 ) Red Skin, White Masks: Rejecting the Colonial Politics of Recognition. Minneapolis, MN : University of Minnesota Press .

Google Scholar Crossref

Cowen, D, Lewis, N ( 2016 ) Anti-blackness and urban geopolitical economy . Society and Space. Available at: http://societyandspace.org/2016/08/02/anti-blackness-and-urban-geopolitical-economy-deborah-cowen-and-nemoy-lewis/ (accessed 1 October 2018).

Google Scholar

Curtis, S ( 2011 ) Global cities and the transformation of the international system . Review of International Studies 37(4): 1923 – 1947 .

Google Scholar Crossref

Curtis, S ( 2016 ) Global Cities and Global Order. Oxford : Oxford University Press .

Google Scholar Crossref

Da Silva, DF ( 2001 ) Towards a critique of the socio-logos of justice: The analytics of raciality and the production of universality . Social Identities 7(3): 421 – 454 .

Google Scholar Crossref

Davis, M ( 2004 ) The urbanization of empire: Megacities and the laws of chaos . Social Text 22(4): 9 – 15 .

Google Scholar Crossref

Davis, M ( 2007 ) Planet of Slums. London and New York, NY : Verso .

Google Scholar

Dikec, M ( 2011 ) Badlands of the Republic: Space, Politics and Urban Policy. Oxford : Wiley & Sons .

Google Scholar

Dixon, P ( 2009 ) ‘Hearts and minds’? British counter-insurgency from Malaya to Iraq . Journal of Strategic Studies 32(3): 353 – 381 .

Google Scholar Crossref | ISI

Dodd, V ( 2017 ) Stop and search eight times more likely to target black people . The Guardian. Available at: http://www.theguardian.com/law/2017/oct/26/stop-and-search-eight-times-more-likely-to-target-black-people (accessed 19 February 2018).

Google Scholar

Dorling, D ( 2011 ) Unique Britain . OpenDemocracy. Available at: http://www.opendemocracy.net/shinealight/danny-dorling/unique-britain (accessed 19 February 2018).

Google Scholar

Easterling, K ( 2014 ) Extrastatecraft: The Power of Infrastructure Space. London and New York, NY : Verso Books .

Google Scholar

El-Enany, N ( 2017 ) The colonial logic of Grenfell . Verso Blog. Available at: https://www.versobooks.com/blogs/3306-the-colonial-logic-of-grenfell (accessed 30 July 2019).

Google Scholar

Erlanger, S ( 2017 ) After Grenfell Tower fire, U.K. asks: Has deregulation gone too far? The New York Times. Available at: https://www.nytimes.com/2017/06/28/world/europe/uk-grenfell-tower-fire-deregulation.html (accessed 19 February 2018).

Google Scholar

Fanon, F ( 2001 ) The Wretched of the Earth. London : Penguin .

Google Scholar

Florida, R ( 2005 ) The Rise of the Creative Class: And How It’s Transforming Work, Leisure, Community, and Everyday Life. London : Harper .

Google Scholar Crossref

Franck, A ( 2019 ) The ‘street politics’ of migrant il/legality: Navigating Malaysia’s urban borderscape . Asia Pacific Viewpoint 60(1): 14 – 23 .

Google Scholar Crossref

Ghertner, DA ( 2014 ) India’s urban revolution: Geographies of displacement beyond gentrification . Environment and Planning A 46: 1554 – 1571 .

Google Scholar SAGE Journals | ISI

Gillespie, T ( 2016 ) Accumulation by urban dispossession: Struggles over urban space in Accra, Ghana . Transactions of the Institute of British Geographers 41(1): 66 – 77 .

Google Scholar Crossref

Gilmore, RW ( 2007 ) Golden Gulag: Prisons, Surplus, Crisis, and Opposition in Globalizing California. Berkeley and Los Angeles, CA : University of California Press .

Google Scholar Crossref

Gilmore, RW ( 2015 ) Organized abandonment and organized violence: Devolution and the police . UC Santa Cruz, 9 November . Available at: https://vimeo.com/146450686 (accessed 18 October 2018).

Google Scholar

Goldberg, DT ( 2013 ) ‘Polluting the body politic’: Racist discourse and urban location . In: Cross, M, Keith, M (eds) Racism, the City and the State. London : Routledge .

Google Scholar

Goldstein, A ( 2017 ) On the reproduction of race, capitalism, and settler colonialism . In: Race and Capitalism: Global Territories, Transnational Histories (ed Davis, W ), University of California , Los Angeles, USA , 20 October 2017 , pp. 42 – 51 . Available at: http://criticallegalthinking.com/2018/09/21/organised-state-abandonment-the-meaning-of-grenfell/

Google Scholar

Graham, S ( 2011 ) Cities Under Siege: The New Military Urbanism. London and New York, NY : Verso Books .

Google Scholar

Grenfell Action Group ( 2016 ) KCTMO — Playing with fire! Available at: https://grenfellactiongroup.wordpress.com/2016/11/20/kctmo-playing-with-fire/ (accessed 10 September 2018).

Google Scholar

Grenfell Tower Inquiry ( 2017 ) About . Available at: https://www.grenfelltowerinquiry.org.uk/about (accessed 10 September 2018).

Google Scholar

Griffin, A ( 2017 ) Grenfell Tower cladding that may have led to fire was chosen to improve appearance of Kensington block of flats . The Independent. Available at: http://www.independent.co.uk/news/uk/home-news/grenfell-tower-cladding-fire-cause-improve-kensington-block-flats-appearance-blaze-24-storey-west-a7789951.html (accessed 1 March 2018).

Google Scholar

Grosfoguel, R ( 2004 ) Race and ethnicity or racialized ethnicities? Identities within global coloniality . Ethnicities 4(3): 315 – 336 .

Google Scholar SAGE Journals

Gulliver, K ( 2016 ) Forty Years of Struggle: A Window on Race and Housing, Disadvantage and Exclusion. Birmingham : Human City Institute .

Google Scholar

Hall, S, Critcher, C, Jefferson, T, et al . ( 2013 ) Policing the Crisis: Mugging, the State and Law and Order. London : Red Globe Press .

Google Scholar Crossref

Harvey, D ( 2003 ) The New Imperialism. Oxford : Oxford University Press .

Google Scholar

Hazan, E ( 2010 ) Faces of Paris . New Left Review 62: 31 – 44 .

Google Scholar

Hunt, T ( 2015 ) Ten Cities that Made an Empire. London : Penguin .

Google Scholar

Johnson, GT, Lubin, A ( 2017 ) Futures of Black Radicalism. London and New York, NY : Verso Books .

Google Scholar

Johnson, KS ( 2014 ) ‘Black’ suburbanization: American dream or the new banlieue? Social Science Research Council Cities Papers. Available at: http://citiespapers.ssrc.org/black-suburbanization-american-dream-or-the-new-banlieue/ (accessed 10 February 2019).

Google Scholar

Johnson, W ( 2016 ) To remake the world: Slavery, racial capitalism, and justice . Boston Review. Available at: https://bostonreview.net/race/walter-johnson-slavery-human-rights-racial-capitalism (accessed 22 June 2017).

Google Scholar

Jones, BG ( 2012 ) Civilising African cities: International housing and urban policy from colonial to neoliberal times . Journal of Intervention and Statebuilding 6(1): 23 – 40 . Available at: https://doi.org/10.1080/17502977.2012.655560

Google Scholar

Jones, P ( 2008 ) Different but the same? Post-war slum clearance and contemporary regeneration in Birmingham, UK . City 12(3): 356 – 371 .

Google Scholar Crossref

Kangas, A ( 2017 ) Global cities, international relations and the fabrication of the world . Global Society 31(4): 531 – 550 .

Google Scholar Crossref

Kaplan, A ( 2005 ) The Anarchy of Empire in the Making of U.S. Culture. Cambridge : Harvard University Press .

Google Scholar

Keenan, S ( 2017 ) A border in every street . The Disorder of Things. Available at: https://thedisorderofthings.com/2017/06/29/a-border-in-every-street/ (accessed 1 October 2018).

Google Scholar

Kelley, RDG ( 2012 ) Disappearing acts: Harlem in transition . In: Hammett, J, Hammett, K (eds) The Suburbanization of New York: Is the World’s Greatest City Becoming Just Another Town? San Francisco, CA : Chronicle Books .

Google Scholar

Kelley, RDG ( 2015 a) Hammer and Hoe: Alabama Communists during the Great Depression. Chapel Hill, NC : The University of North Carolina Press .

Google Scholar Crossref

Kelley, RDG ( 2015 b) Mike Brown’s body: Meditations on war, race and democracy . Princeton University, 13 April . Available at: https://www.youtube.com/watch?v=RP8FP8qjKgc (accessed 10 October 2018).

Google Scholar

Khalili, L ( 2010 ) The location of Palestine in global counterinsurgencies . International Journal of Middle Eastern Studies 42(3): 413 – 433 .

Google Scholar Crossref

Kirkpatrick, D, Hakim, D, Glanz, J ( 2017 ) Why Grenfell Tower burned: Regulators put cost before safety . The New York Times. Available at: https://www.nytimes.com/2017/06/24/world/europe/grenfell-tower-london-fire.html (accessed 10 October 2018).

Google Scholar

Kusno, A ( 2010 ) The Appearances of Memory: Mnemonic Practices of Architecture and Urban Form in Indonesia. Durham : Duke University Press .

Google Scholar Crossref

Legg, S ( 2008 ) Spaces of Colonialism: Delhi’s Urban Governmentalities. London : John Wiley & Sons .

Google Scholar

Ljungkvist, K ( 2015 ) The Global City 2.0: From Strategic Site to Global Actor. London : Routledge .

Google Scholar Crossref

Loretta, L, Bang Shin, H, Lopez-Morales, E ( 2015 ) Global Gentrifications: Uneven Development and Displacement. Bristol : The Policy Press .

Google Scholar

Lowe, L ( 2015 ) The Intimacies of Four Continents. Durham : Duke University Press .

Google Scholar Crossref

MacLeod, G ( 2018 ) The Grenfell Tower atrocity . City 22(4): 460 – 489 .

Google Scholar Crossref

McRobbie, A ( 2017 ) Fire in neo-liberal London . OpenDemocracy. Available at: https://www.opendemocracy.net/en/transformation/fire-in-neo-liberal-london/ (accessed 10 October 2018).

Google Scholar

Madden, DJ ( 2017 ) Editorial: A catastrophic event . City 21(1): 1 – 5 .

Google Scholar

Maharawal, MM ( 2017 ) Black Lives Matter, gentrification and the security state in the San Francisco Bay area . Anthropological Theory 17(3): 338 – 364 .

Google Scholar SAGE Journals | ISI

Melamed, J ( 2015 ) Racial capitalism . Critical Ethnic Studies 1(1): 76 – 85 .

Google Scholar Crossref

Mignolo, WD ( 2007 ) Delinking . Cultural Studies 21(2/3): 449 – 514 .

Google Scholar Crossref | ISI

Mills, J ( 2019 ) Grenfell victims still living in temporary accommodation two years later . Metro. Available at: https://metro.co.uk/2019/04/09/grenfell-victims-still-living-temporary-accommodation-two-years-later-9141649/ (accessed 29 April 2019).

Google Scholar

Neocleous, M, Kastrinou, M ( 2016 ) The EU hotspot: Police war against the migrant . Radical Philosophy 200: 3 – 9 .

Google Scholar

New York Civil Liberties Union ( 2019 ) Stop-and-frisk in the de Blasio era . Available at: https://www.nyclu.org/sites/default/files/field_documents/20190314_nyclu_stopfrisk_singles.pdf (accessed 29 April 2019).

Google Scholar

Nightingale, CH ( 2012 ) Segregation: A Global History of Divided Cities. Chicago, IL : University of Chicago Press .

Google Scholar Crossref

Omi, M, Winant, H ( 2014 ) Racial Formation in the United States. London : Routledge .

Google Scholar Crossref

Oswin, N ( 2014 ) Queer time in global city Singapore: Neoliberal futures and the ‘freedom to love’ . Sexualities 17(4): 412 – 433 .

Google Scholar SAGE Journals | ISI

Poon, A ( 2009 ) Pick and mix for a global city: Race and cosmopolitanism in Singapore . In: Goh, DPS, Gabrielpillai, M, Holden, P, et al . (eds) Race and Multiculturalism in Malaysia and Singapore. London : Routledge .

Google Scholar

Pulido, L ( 2000 ) Rethinking environmental racism: White privilege and urban development in Southern California . Annals of the Association of American Geographers 90(1): 12 – 40 .

Google Scholar Crossref

Pulido, L ( 2016 ) Flint, environmental racism, and racial capitalism . Capitalism Nature Socialism 27(3): 1 – 16 .

Google Scholar Crossref

Razack, S ( 2002 ) When place becomes race . In: Razack, S (ed.) Race, Space, and the Law: Unmapping a White Settler Society. Toronto : Between The Lines .

Google Scholar

Renwick, D, Ish ( 2017 ) Failed by the state: The struggle in the shadow of Grenfell (Part 1) (Documentary) Berlin : Redfish .

Google Scholar

Rice-Oxley, M ( 2018 ) Grenfell: The 72 victims, their lives, loves and losses . The Guardian. Available at: https://www.theguardian.com/uk-news/2018/may/14/grenfell-the-71-victims-their-lives-loves-and-losses (accessed 15 May 2018).

Google Scholar

Robinson, C ( 2000 ) Black Marxism: The Making of the Black Radical Tradition. Chapel Hill, NC : University of North Carolina Press .

Google Scholar

Sabaratnam, M ( 2017 ) Decolonising Intervention: International Statebuilding in Mozambique. London : Rowman & Littlefield International .

Google Scholar

Samara, TR ( 2011 ) Cape Town After Apartheid: Crime and Governance in the Divided City. Minneapolis, MN : University of Minnesota Press .

Google Scholar Crossref

Sandercock, L, Lyssiotis, P ( 2003 ) Cosmopolis II: Mongrel Cities of the 21st Century. London : A&C Black .

Google Scholar

Sassen, S ( 1993 ) Rebuilding the global city: Economy, ethnicity, and space . Social Justice 20(3/4): 32 – 50 .

Google Scholar

Sassen, S ( 2013 ) The Global City: New York, London, Tokyo. Princeton, NJ : Princeton University Press .

Google Scholar

Shildrick, T ( 2018 ) Lessons from Grenfell: Poverty propaganda, stigma and class power . The Sociological Review 66(4): 783 – 798 .

Google Scholar SAGE Journals | ISI

Shilliam, R ( 2015 ) The Black Pacific: Anti-Colonial Struggles and Oceanic Connections. London : Bloomsbury Publishing .

Google Scholar

Shilliam, R ( 2018 ) Race and the Undeserving Poor: From Abolition to Brexit. Newcastle : Agenda Publishing .

Google Scholar Crossref

Siddique, H ( 2018 ) Grenfell Tower: Inquiry fails to consider ‘institutional racism’, says victim’s QC — as it happened . The Guardian. Available at: https://www.theguardian.com/uk-news/live/2018/jun/05/grenfell-inquiry-survivors-opening-statements-begin-live-updates (accessed 10 October 2018).

Google Scholar

Sinclair, DG, Williams, DCA ( 2007 ) ‘Home and away’: The cross-fertilisation between ‘colonial’ and ‘British’ policing, 1921–85 . Journal of Imperial and Commonwealth History 35(2): 221 – 238 .

Google Scholar Crossref | ISI

Slater, T ( 2009 ) Missing Marcuse: On gentrification and displacement . City 13(2/3): 292 – 311 .

Google Scholar Crossref

Smith, N ( 2002 ) New globalism, new urbanism: Gentrification as global urban strategy . Antipode 34(3): 427 – 450 .

Google Scholar Crossref | ISI

Smith, N ( 2005 ) The New Urban Frontier: Gentrification and the Revanchist City. London : Routledge .

Google Scholar Crossref

Smith, N ( 2014 ) Class struggle on Avenue B: The Lower East Side as Wild Wild West . In: Gieseking, J, Mangold, W, Katz, C, et al . (eds) The People, Place, and Space Reader. London : Routledge .

Google Scholar

Tilley, L, Elias, J, Rethel, L (eds) ( 2019 ) The production and contestation of exemplary centres in Southeast Asia . Asia Pacific Viewpoint 60(1): 7 – 13 .

Google Scholar Crossref

Tucker, P ( 2017 ) The Grenfell Tower fire was the end result of a disdainful housing policy . The Guardian. Available at: https://www.theguardian.com/commentisfree/2017/jun/20/grenfell-fire-housing-policy-social-housing-tenants (accessed 10 October 2018).

Google Scholar

Turner, J ( 2017 ) Internal colonisation: The intimate circulations of empire, race and liberal government . European Journal of International Relations 24(4): 765 – 790 .

Google Scholar SAGE Journals

Urban Displacement Project ( 2015 ) Executive summary . Available at: https://www.urbandisplacement.org/sites/default/files/images/urban_displacement_project_-_executive_summary.pdf (accessed 8 October 2018).

Google Scholar

Urena-Ravelo, BL ( 2017 ) It’s true, gentrification isn’t the new colonialism, it’s just the old one . Medium. Available at: https://medium.com/@AfroResistencia/its-true-gentrification-isn-t-the-new-colonialism-it-s-just-the-old-one-daf7e97a86f0 (accessed 1 October 2018).

Google Scholar

Vitalis, R ( 2015 ) White World Order, Black Power Politics: The Birth of American International Relations, The United States in the World. Ithaca, NY : Cornell University Press .

Google Scholar

Whetlor, S ( 1998 ) Story of Notting Dale: From Potteries and Piggeries to Present Times. London : Kensington & Chelsea Community History Group .

Google Scholar

Williamson, C ( 2017 ) This is how neoliberalism, led by Thatcher and Blair, is to blame for the Grenfell Tower disaster . The Independent. Available at: https://www.independent.co.uk/voices/grenfell-tower-inquiry-deregulation-thatcher-tony-blair-fire-service-cuts-a7876346.html (accessed 8 October 2018).

Google Scholar