This should take you to http://ieeexplore.ieee.org/iel5/10604/33512/01591863.pdf?isnumber=33512&prod=CNF&arnumber=1591863&arSt=+8+pp.&ared=&arAuthor=Minvielle%2C+P.%3B+Marrs%2C+A.D.%3B+Maskell%2C+S.%3B+Doucet%2C+A. .