R. Schultheis

Integrated Cases for Managers: To Accompany Schultheis and Sumner's Management Information Systems, a Manager's View

Douglas B. Bock, R. Schultheis, 1989 .

Management Information Systems: APICS Special Edition, the Manager's View

Mary Sumner, Robert A. Schultheis, M. Sumner, 1991 .

The relationship of application risks to application controls: a study of microcomputer-based database applications

Mary Sumner, Robert A. Schultheis, M. Sumner, 1991, SIGCPR '91.

Device for Controlled Cyclic Substitution during Spontaneous Filtration

W. Glöckner, H. Sieberth, R. Schultheis, 1985 .

Time to Stop Labeling and Start Teaching.

R. Schultheis, 1975 .

Residential sewage lagoon systems : a homeowner's guide to installation and maintenance

R. Schultheis, 1997 .