1. Abramowitz, M. and Stegun, I. A.: 1968,Handbook of Mathematical Functions, National Bureau of Standards, Washington, p. 920.
2. Baldwin, R. B.: 1963,The Measure of the Moon, University of Chicago Press, Chicago, pp. 153?187.
3. Bond, J. W.: 1981,The Moon and the Planets 25, 465.
4. Bond, J. W., Keyse, R. J., and Newton, G.: 1980,Planet. Space Sci. 28, 599.
5. Braslau, D.: 1970,J. Geophys. Res. 75, 3987.