American Rocket Society: 6, p. 141; 17, p. 209.

Apollo program: 3. p. 241; 15. pp. 243, 259; 17, p. 405.

Atlas missile: 17, p. 285.

Blagonravov, Anatoly: 14, p. 197.

British Interplanetary Society: 6, p. 209; 12, p. 37.

Collier’s

magazine: 15, p. 235; 17, p. 35.

Earth, near-space environment: 11, p. 59.

Gagarin, Yuri: 15, pp. 73, 423.

Goddard, Robert: 6, p. 57; 8, p. 317; 15, p. 181.

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