Rolf GindorfRolf Gindorf was a German sexologist. He was a member of Mensa. In 1971 he founded the German Society for Social-Scientific Sexuality Research.He received the 2004 Magnus Hirschfeld Medal.PublicationsGindorf's published works include:Sexology Today. A Brief Introduction. Düsseldorf 1993, 141 pp. Bisexualities. The Ideology and Practice of Sexual Contact with Both Men and Women. New York 1998, 270 pp.