The Invaders
Murray Leinster
Наука и жизнь #03 2014
Nauka i Zhizn Magazine
Крокодил, 1942 , № 46
Krokodil Magazine
Крокодил, 1957 , № 34
Survival
Julie E. Czerneda
Species Imperative (1)
Regeneration
Species Imperative (3)