Cruz, J. B., Jr.; Mueller, J. F.; Thornton, R. D.(Research Laboratory of Electronics (RLE) at the Massachusetts Institute of Technology (MIT), 1956-07-15)
Albert, A. E.; Reiss, M.; Koehler, R. L.; Goetz, R.; Marcus, Edward N.; Geisler, C. D.; Sandel, T. T.; Shefrin, D.; Gordon, F.(Research Laboratory of Electronics (RLE) at the Massachusetts Institute of Technology (MIT), 1956-07-15)