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    Estimation of Unmodeled Forces on a Low-Thrust Space Vehicle

    B. D. Tapley / H. Hagar | NTIS | 1972
    Schlagwörter: Differential equations

    Estimation of Unmodeled Forces on a Lunar Satellite

    B. D. Tapley / B. E. Schultz | NTIS | 1972
    Schlagwörter: Differential equations