31-01-2010, 08:42 PM
pleas read
http://www-mtl.mit.edu/researchgroups/hs...07kara.pdf
http://springerlinkindex/M353X6M42712620H.pdf
http://www-mtl.mit.edu/researchgroups/hs...07kara.pdf
http://springerlinkindex/M353X6M42712620H.pdf