G. Octo Barnett, James J. Cimino, Jon A. Hupp and Edward P. Hoffer
DXplain: Experience with Knowledge Acquisition and Program Evaluation
Proceedings of the Eleventh Annual Symposium on Computer Applications in Medical Care, IEEE, Washington DC (1987), pp150-154
Edward P. Hoffer
Computer-Aided Instruction (CAI): Educational and Programming Techniques
Proceedings of the 1974 MUMPS Users' Group meeting, Volume 1974