Gordon Ross

Journal of 9/11 Studies, Vol 1 2006
Momentum Transfer Analysis of the Collapse of the Upper Stories of WTC1
www.journalof911studies.com/articles/Journal_5_PTransferRoss.pdf

http://gordonssite.tripod.com/id2.html

How the Towers were Demolished.htm

Also referenced in Journal of 9/11 Studies
http://www.journalof911studies.com