Gio Wiederhold
Database Design
McGraw Hill, New York (1983), pp215-220
Gio Wiederhold and Emmanuel Mesel
Ambulatory Automated Medical Record System
Proceedings of the 1975 MUMPS Users' Group Meeting, Volume 1975
Gio Wiederhold
The Data Model of MUMPS Globals
Proceedings of the 1978 MUMPS Users' Group Meeting, Volume 1978