Baras, John S., "Bilinear Hereditary Differential Systems: State Space Models in Hilbert Space", 1976 Conference on Decision and Control (CDC), pp. 148-149, Clearwater, Florida, December 1976
Baras, John S., Levine, William S., "Filtering Techniques For Urban Traffic Data", 1976 Conference on Decision and Control (CDC), pp. 1297-1298, Clearwater, Florida, December 1976