Computers & Mathematics with Applications
Computers and Mathematics with Applications > 1999 > 37 > 3 > 87-96
Computers and Mathematics with Applications > 1999 > 38 > 1 > 103-118
Computers and Mathematics with Applications > 1999 > 37 > 3 > 87-96
Computers and Mathematics with Applications > 1999 > 38 > 1 > 103-118