1. Seifert HS (Hrsg) (1959) Space technology. John Wiley, New York
2. Danby JMA (1962) Fundamentals of celestial mechanics. Macmillan, New York
3. Giese RH (1966) Weltraumforschung I. BI, Mannheim
4. Moulton FR (1970) An introduction to celestial mechanics. Dover, New York
5. Battin RH (1999) An introduction to the mathematics and methods of astrodynamics. AIAA, Reston