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Citation: R. Gershman et Ra. Wallace, Technology needs of future planetary missions, ACT ASTRONA, 45(4-9), 1999, pp. 329-335

Authors: Gershman, R Penzo, P Wiercigroch, A

Citation: R. Gershman et al., From GTO to the planets, ACT ASTRONA, 45(4-9), 1999, pp. 517-525

Authors: Gershman, R Seybold, C

Citation: R. Gershman et C. Seybold, Propulsion trades for space science missions, ACT ASTRONA, 45(4-9), 1999, pp. 541-548