Computers & Mathematics with Applications
Computers and Mathematics with Applications > 2010 > 59 > 2 > 977-993
Computers and Mathematics with Applications > 2011 > 61 > 8 > 2158-2163
Computers and Mathematics with Applications > 2010 > 59 > 2 > 977-993
Computers and Mathematics with Applications > 2011 > 61 > 8 > 2158-2163