by Hensel, M.L., Schulz-DuBois, E.O.
Published in IEEE transactions on microwave theory and techniques (01.05.1964)

by Dietrich, A.F., Goodwin, F.E., Hensel, M.L., Kiefer, J.E., Levy, R., Moss, G.E., Oliner, A.A., O'Meara, T.R., Paterno, P.M., Schulz-DuBois, E.O., Sharpless, W.M., Tamir, T., Charles C. H. Tang, Han-chiu Wang, Wheeler, H.A., Youla, D.C.
Published in IEEE transactions on microwave theory and techniques (01.05.1964)