After Worlds Collide
Philip/Balmer Wylie & Edwin
Наука и жизнь #01 2008
Nauka i Zhizn Magazine
Крокодил, 1933 , № 16
Krokodil Magazine
Техника - молодежи №01 1937
Tekhnika Molodezhi Magazine
Declination
David Derrico
Right Ascension