Computers & Mathematics with Applications
Computers and Mathematics with Applications > 2009 > 58 > 2 > 281-291
Computers and Mathematics with Applications > 2009 > 58 > 3 > 528-535
Computers and Mathematics with Applications > 2009 > 58 > 6 > 1103-1112
Computers and Mathematics with Applications > 2009 > 58 > 8 > 1623-1630