Lowder, R. S.; Thomassen, K. I.; Hutchinson, D. P.; Coppi, Bruno; Rem, J.(Research Laboratory of Electronics (RLE) at the Massachusetts Institute of Technology (MIT), 1972-10-15)
Zimmermann, Henry J.; Harvey, George G.; Mason, Samuel J.(Research Laboratory of Electronics (RLE) at the Massachusetts Institute of Technology (MIT), 1972-10-15)