Sail Magazine
http://sailmag.com/features/Huberman/
Sailing Anarchy (2004)
http://www.sailinganarchy.com/fringe/2004/wylie%2043.htm
Professional Boatbuilder (June/July 2007)
http://www.proboat-digital.com/proboat/20070809/?pg=96
(note: This is a major article on hybrid power by Nigel Calder, and due to the
format of the magazine you may need to scroll a few pages to find the relevant
parts)