On Fri, 18 Sep 2009 14:36:58 +0100, Paul Martin wrote:

[Citation needed]

http://www.eric.ed.GOV/ERICWebPortal/custom/portlets/recordDetails/detailmini.jsp?_nfpb=true&_&ERICExtSearch_SearchVa lue_0=EJ062216&ERICExtSearch_SearchType_0=no&accno =EJ062216

And for an electron increasing its mass due conversion of its own energy

http://www.sciencedirect.COM/science?_ob=ArticleURL&_udi=B6TVW-4BJW980-5&_user=10&_rdoc=1&_fmt=&_orig=search&_sort=d&_doc anchor=&view=c&_acct=C000050221&_version=1&_urlVer sion=0&_userid=10&md5=f001da71c5c02ef759f8594ea237 d6c5