1. Queueing for Medical Care
2. Balintfy, J. L. “A Stochastic Model for the Analysis and Prediction of Admissions and Discharges in Hospitals,”. Institute of Management Sciences, Sixth International Meeting, Proceedings. Vol. 2, pp.288–99. New York: Pergamon Press. (in Management Sciences: Models and Techniques, Pergamon Press, 1960)