More information on VPM and other decompression models:

VPM Decompression Site:
http://www.decompression.org/maiken/...m_Site_Map.htm

RBGM:
ftp://decompression.org/pub/Wienke/

Decompression information:
http://www.deepocean.net/

Decompression model comparisons:
ftp://decompression.org/pub/Maiken/
ftp://decompression.org/pub/