re: A type of Hohmann Transfer maybe?
Ways To The Moon from ESA (page 4):
http://esapub.esrin.esa.it/bulletin/bullet103/biesbroek103.pdf
They describe other other ways. The Hohmann Transfer is the most fuel efficient, but takes the longest.
Low Energy Transfer To The Moon
W.S.Koon, M.W. Lo, J.E. Marsden and S.D. Ross
January 2001
PDF:
http://www.cds.caltech.edu/~koon/papers/koon.pdf
Marcia
-has some idea on the basics, but not the numbers. :}