Author/Creator
Buber, Martin
1
Deppe, Frank
1
Engels, Friedrich
1
Fetscher, Iring
1
Galkin, A.A.
1
Hausenstein, Wilhelm
1
Heiss, Robert
1
Hirsch, Helmut
1
Hofmann, Werner
1
Kautsky, Karl
1
Kool, Frits
1
Krause, Werner
1
Pelger, Hans
1
Ponomariov, Boris
1
Proudhon, Pierre-Joseph
1
Stadler, Peter
1
Vester, Michael
1