Cajo Brendels biography of Pannekoek was originally published in 1970 in Dutch as "Anton Pannekoek. Theoretikus van het Socialisme" by Van Gennep in Amsterdam.

This German version was published by the ça ira - Verlag Freiburg as

Cajo Brendel:
Anton Pannekoek  - Denker der Revolution
Freiburg (ça-ira Verlag) 2001
ISBN 3-924627-75-4

This e-version was kindly delivered by the ça ira - Verlag Freiburg - www.isf-freiburg.org
The lay-out here was was made by Kurasje