Baras, John S., "Frequency Domain Design of Linear Distributed Systems", 19th IEEE Conference On Decision and Control, pp. 728-732, Albuquerque, New Mexico, December 1980
Baras, John S., "Group Invariance Methods in NonLinear Filtering Of Diffusion Processes", 19th IEEE Conference On Decision and Control, pp. 72-79, Albuquerque, New Mexico, December 1980
