A couple of neat articles on mission planning/orbitals 1

[GregLocock]

http://pr.caltech.edu/periodicals/EandS/articles/LXV3/kohlhase.html

Rather more interesting - using chaotic properties at L1 etc to pick low energy transfers-

http://pr.caltech.edu/periodicals/EandS/articles/LXV4/exit.html

Cheers

Greg Locock