1. Bond, V. and Janin, G.: 1981,Celes. Mech. 23, 159.
2. Bond, V. and Szebehely, V.: 1982a, ?Transformations of the Two-Body Problem to Harmonic Oscillators,? NASA-JSC-17933, March 1982.
3. Brouwer, D. and Clemence, G.: 1961,Methods of Celestial Mechanics, Academic Press, New York and London.
4. Hagihara, Y.: 1970?1976,Celes. Mech. Vols. 1?5, MIT Press, Cambridge, Massachusetts, and Japan Society for Promotion of Science, Tokyo.
5. Kustaanheimo, P. and Stiefel, E.: 1965,J. reine angewandte Math. 218, 204.