Computers & Mathematics with Applications
Computers and Mathematics with Applications > 1999 > 37 > 1 > 67-74
Computers and Mathematics with Applications > 1999 > 38 > 2 > 61-72
Computers and Mathematics with Applications > 1999 > 37 > 1 > 67-74
Computers and Mathematics with Applications > 1999 > 38 > 2 > 61-72