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Jan 21, 2013 7:02:15 AM Jan 21, 2013 7:02:15 AM pvalev@yahoo.com 0 http://mathforum.org/kb/thread.jspa?messageID=8116042&tstart=0#8116042
Jan 20, 2013 6:50:01 PM Jan 20, 2013 6:50:01 PM pvalev@yahoo.com 1 http://mathforum.org/kb/thread.jspa?messageID=8114809&tstart=0#8114809 http://www.informaworld.com/smpp/content~content=a909857880]]> Jan 20, 2013 1:03:55 PM Jan 20, 2013 1:03:55 PM pvalev@yahoo.com 2