Blankenship, Gilmer L., Baras, John S., "Nonlinear Filtering of Diffusion Processes: A Generic Example", 18th IEEE Conference on Decision and Control, Ft. Lauderdale, Florida, December 1979
Baras, John S., Goldberg, Allen Jay., "Linear Stochastic Systems with Memoryless Nonlinearities", 18th IEEE Conference on Decision and Control, p. 1038, Ft. Lauderdale, Florida, December 1979