Grrr!!!! Again
Damn the Word tricks with the quotes. Must apologize for the previous incorrect speculation. Just your run of the mill irritating dead links after moving info elsewhere.
Mars Direct The Gandaddy
1992 NASA Reference Mission Version
The NASA Mars Reference Mission
Mars Direct Summary
1997 NASA Reference Mission Version
More on 1997 NASA Reference Mission Version
HTML Version of 1997 NASA Reference Mission Version
Spaceref List
1997 NASA Reference Mission Version full pdf
Comparison of Various Missions
General Exploration Documents
Reference Mission Version 3.0 Addendum to the Human Exploration of Mars: The Reference Mission of the NASA Mars Exploration Study Team June, 1998
Summary of Version 3 Changes
PBS’ JOURNEY TO MARS 2000