Крокодил, 1931 , № 02
Krokodil Magazine
T'N'T: Telzey and Trigger
James H. Schmitz
Наука и жизнь #05 1976
Nauka i Zhizn Magazine
Крокодил, 1929 , № 17
One Year War - Snapshots from the Front
Nick Davis
Turing Evolved
David Kitson