Gary W. Hansen

Database management and design (2nd ed.)

James V. Hansen, Gary W. Hansen, J. Hansen, 1995 .

An approximate user-complexity measure for relational query language systems

James V. Hansen, Gary W. Hansen, J. Hansen, 1991, Data Knowl. Eng..

Human Performance in Relational Algebra, Tuple Calculus, and Domain Calculus

James V. Hansen, Gary W. Hansen, 1988, Int. J. Man Mach. Stud..

Avoiding the Pitfalls of Installing Vertical Market Software

Gary W. Hansen, 1986 .

Database Management and Design

James V. Hansen, Gary W. Hansen, 1991 .

Procedural and Non-Procedural Query Languages Revisited: A Comparison of Relational Algebra and Relational Calculus

James V. Hansen, Gary W. Hansen, 1987, Int. J. Man Mach. Stud..

On the existence of generalized inverses

Gary W. Hansen, D. W. Robinson, 1974 .