Computers & Mathematics with Applications
Computers and Mathematics with Applications > 1999 > 37 > 1 > 125-130
Computers and Mathematics with Applications > 1999 > 37 > 2 > 41-45
Computers and Mathematics with Applications > 1999 > 37 > 11-12 > 1-7
Computers and Mathematics with Applications > 1999 > 37 > 11-12 > 17-22