von Bismarck, G.; Pfeiffer, R. R.; Henry, R. W.; Burns, S. K.; Demko, P., Jr.(Research Laboratory of Electronics (RLE) at the Massachusetts Institute of Technology (MIT), 1968-04-15)
Perkins, D. N.; Robbins, G. M.; Tretiak, O. J.; Young, Ian T.; Grassmann, P. H.; Mason, Samuel J.; Lee, Francis F.; Troxel, Donald E.(Research Laboratory of Electronics (RLE) at the Massachusetts Institute of Technology (MIT), 1968-04-15)