Tony,
this guy J. Peserik ,
http://www.experts.com/listing.asp?index=962

..is the latest author of a case in the Sept. EC&M.

also there is this article http://ecmweb.com/issue_20050801/

it really doesn't tell you what you need to know , but the two authors have several qualifications, in fact the first guy has an alphabet soup after his name.
Anyway you might get something from the links.

togol

Tom