[de] [Magazine of Fantasy & SF 16] • Die Menschenfarm Heyne, Wilhelm Verlag
[en] Paths Not Taken · British Labour and International Policy in the 1920s University of North Carolina Press
[de] [Magazine of Fantasy & SF 16] • Die Menschenfarm Heyne, Wilhelm Verlag
[en] Paths Not Taken · British Labour and International Policy in the 1920s University of North Carolina Press