text: Here are a couple of links:\nhttp://ois.nist.gov/nistpubs/technipubs/recent/search.cfm?dbibid=3206\n\nhttp://www3.imperial.ac.uk/portal/page?_pageid=61,355771&_dad=portallive&_schema=PORTALLIVE\n\nYou really need to go to an engineering library and search abstracts online to find papers.