Computers & Mathematics with Applications
Computers and Mathematics with Applications > 2009 > 57 > 4 > 664-676
Computers and Mathematics with Applications > 2009 > 58 > 11-12 > 2091-2097
Computers and Mathematics with Applications > 2009 > 57 > 4 > 664-676
Computers and Mathematics with Applications > 2009 > 58 > 11-12 > 2091-2097