[35] Ibid. [36] Ibid. [37] Vajk, p. 73. [38] Ibid., p. 69. [39] Ibid., p. 80. (Table 12) [40] Ibid., pp. 67, power satellite late 81. (First shuttle launch January 1985, first solar power satellite 1990) [41] Ibid., p. 69. (Table 5) [42] Ibid., p. 81. (Table 13) [43] Ibid. [44] Ibid., p. 68. [45] Ibid., p. 74. [46] Ibid. p. 80. (Table 12) [47] Ibid., p. 66. [48] Ibid., p. 80. (Table 12) [49] Brian O'Leary et al., "Retrieval of Asteroidal Materials," in M4&4 SP-428, p. 184. [50] David F. Bender et al., "Round-Trip Missions to Low-Delta-V Asteroids and Implications for Material Retrieval," in NASA SP-428, p. 169. [51] Ibid., p. 170. (Table 7) [52] Edward Bock et al., "Effects of Environmental Parameters on Habitat Structural Weight and Cost," in NASA SP-428, p. 47. (Figure 13) [53] Eric Hannah and Jim Wack, "Space Habitats: Low Level Radiation Effects on Space Settlement," San Francisco meeting of L-5 Society, Bay Area Chapter, August 15, 1979. [54] Bock, p. 47. (Figure 13) [55] Ibid.
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