Käthe Kollwitz. Christoph Meckel: who was, who is Käthe Kollwitz ...? Ulrich Weisner: on the art of Käthe Kollwitz. Hans Kollwitz: Käthe Kollwitz:- a life in diaries. Käthe Kollwitz: letters. Illustrations. Bibliography. [Illustrated.]
Kollwitz, Käthe,1867-1945.
Weisner, Ulrich.
Kollwitz, Hans.
Bad Godesberg,
1967.