A new study has shed more light on the revelations that Hans Asperger, the Austrian pediatrician for whom a form of autism is named, had collaborated with the Nazis and actively assisted in the killing of disabled children.

Published on Wednesday in the journal Molecular Autism by the medical historian Herwig Czech, the report relies on eight years of research that included the examination of previously unseen Nazi-era documents.

The study concludes that though Dr. Asperger was not a member of the Nazi Party, he had participated in the Third Reich’s child-euthanasia program, which aimed to establish a “pure” society by eliminating those deemed a “burden.”

Dr. Asperger referred disabled children to the notorious Am Spiegelgrund clinic in Vienna, where hundreds were either drugged or gassed to death from 1940 to 1945.