Robinson, C. C.; Baker, A. G.; Ellis, James R., Jr.; Loeb, A. L.(Research Laboratory of Electronics (RLE) at the Massachusetts Institute of Technology (MIT), 1961-07-15)
Kipiniak, V. W.; Okabe, Y.; Sandberg, A. A.; Kuhl, F.; Young, L. R.; Willis, P. A.; Rhodes, Helen E.; Vossius, G.; Stark, L.; Hermann, H. T.(Research Laboratory of Electronics (RLE) at the Massachusetts Institute of Technology (MIT), 1961-07-15)