Epstein, Catherine..
The last revolutionaries : German communists and their century /

. - Cambridge ; London  : Harvard University Press,  2003 
. - 322 p. : ill.  24 cm. 
<br/>К.: Бібліогр. в прим. : с. 269-305. 
<br/><label>  ISBN: </label>0-674-01045-0