Kalinin communist education - SPEECH AT THE SEVENTH CONGRESS OF THE ALL-UNION LENINIST YOUNG COMMUNIST LEAGUE https://marxistleninists.org/Reading%20Guide/Communist%20Education/speech%20march%2011%201926.htm
The Peasant War in Germany: Chapter 7 http://hiaw.org/defcon6/works/1850/peasant-war-germany/ch07.html