Otto Gross (1877-1920)

Freud's 'Outstanding' Colleague/Jung's 'Twin Brother': The suppressed psychoanalytic and political significance of Otto Gross, by Gottfried M. Heuer, Routledge, 2016

Gottfried M. Heuer talks to Jonathan Chadwick about this book on https://vimeo.com/196609212 

https://en.wikipedia.org/wiki/Otto_Gross