About Wolfgang Schmidt Wolfgang Schmidt was a researcher at the Addiction Research Foundation in Toronto. Books by Wolfgang Schmidt Social Class and the Treatment of Alcoholism An investigation of social class as a determinant of diagnosis, prognosis, and therapy by (author) Wolfgang Schmidt, Reginald G. Smart & Marcia K. Moss A Decade of Alcoholism Research A review of the research activities of the Alcoholism and Drug Addiction Research Foundation of Ontario, 1951-1961 by (author) Robert E. Popham & Wolfgang Schmidt