Crawford, C. K.; Robinson, C. C.; Ballantyne, J. M.; Sarles, F. W., Jr.; Russell, S. B.; Loeb, A. L.(Research Laboratory of Electronics (RLE) at the Massachusetts Institute of Technology (MIT), 1961-04-15)
Redhead, Julia H.; Okabe, Y.; Payne, R. C.; Stark, L.; Willis, P. A.; Rhodes, Helen E.; Hermann, H. T.(Research Laboratory of Electronics (RLE) at the Massachusetts Institute of Technology (MIT), 1961-04-15)
McCulloch, Warren S.; Verbeek, L. A. M.; Arbib, M. A.; Gesteland, R. C.; Pitts, Walter H.; Maturana, Humberto R.; Lettvin, Jerome Y.(Research Laboratory of Electronics (RLE) at the Massachusetts Institute of Technology (MIT), 1961-04-15)