Крокодил, 1945 , № 12
Krokodil Magazine
Крокодил, 1977 , № 18
Closer (Tunnels)
Roderick Gordon & Brian Williams
Наука и жизнь #06 1969
Nauka i Zhizn Magazine
Poison Study
Maria V. Snyder
Study (1)
Magic Study
Study (2)
Fire Study
Study (3)