Computers & Mathematics with Applications
Computers and Mathematics with Applications > 2011 > 62 > 2 > 668-676
Computers and Mathematics with Applications > 2011 > 62 > 3 > 1612-1617
Computers and Mathematics with Applications > 2011 > 62 > 2 > 668-676
Computers and Mathematics with Applications > 2011 > 62 > 3 > 1612-1617