Наука и жизнь #01 2019
Nauka i Zhizn Magazine
Крокодил, 1949 , № 25
Krokodil Magazine
Техника - молодежи №10 1969
Tekhnika Molodezhi Magazine
The Demon Soul
Richard A. Knaak
Never again! A program for survival
Kahane, Meir