McDonnell Douglas Electronic Systems Company: Description of the INLET System Used for MUC-3 David de Hilster author Amnon Meyers author 1991 text Third Message Understanding Conference (MUC-3): Proceedings of a Conference Held in San Diego, California, May 21-23, 1991 conference publication de-hilster-meyers-1991-mcdonnell-douglas https://aclanthology.org/M91-1027/ 1991