The following are in reverse chronological order of publication.
Rosen, C. A. and Nilsson, N. J. Application Of Intelligent Automata to Reconnaissance, Technical Report . Stanford Research Institute, November 1966. [PDF, Details]
Bennion, D. R. and Crane, H. D. Design and Analysis of MAD Transfer Circuitry, in Western Joint Computer Conference, Proceedings, Institute of Radio Engineers, pp. 21-36, Mar 1959. [PDF, Details]