I recently found this paper to contain some thinking worthwhile to the considerations in this thread.
<http://lcsd05.cs.tamu.edu/papers/veldhuizen.pdf> - Jef ----- This list is sponsored by AGIRI: http://www.agiri.org/email To unsubscribe or change your options, please go to: http://v2.listbox.com/member/?member_id=8660244&id_secret=62868749-8ed517
