Computers & Mathematics with Applications
Computers and Mathematics with Applications > 2009 > 57 > 3 > 476-482
Computers and Mathematics with Applications > 2009 > 58 > 1 > 179-188
Computers and Mathematics with Applications > 2009 > 57 > 3 > 476-482
Computers and Mathematics with Applications > 2009 > 58 > 1 > 179-188