Final Inquiries
Roger MacBride Allen
BSI Starside (3)
Наука и жизнь #08 1968
Nauka i Zhizn Magazine
Крокодил, 1931 , № 35-36
Krokodil Magazine
Техника - молодежи №11 1938
Tekhnika Molodezhi Magazine
a summer nuclear
Loren Wadzeck