Наука и жизнь #03 1988
Nauka i Zhizn Magazine
The Three Series Box Set
Kristen Ashley
Крокодил, 1962 , № 36
Krokodil Magazine
Техника - молодежи №04 1985
Tekhnika Molodezhi Magazine
The Alpha Centauri Project (Thinking worlds)
Marco Santini