Mark Abrahamson and Anton S. Roberts
COSTAR
COSTAR as a Billing and Accounts Receivable System on a Tandem Computer
13, Volume 13, Issue 1
ISSN 0193 0885
Paul N. Pechersky and Bruce Burget
On-Line Accounts Receivable and Cashier's system
Proceedings of the 1976 MUMPS Users' Group Meeting, Volume 1976