by De Gruyl, J.A., Okwit, S., Smith, J.G.
Published in IEEE transactions on microwave theory and techniques (01.09.1968)

by Ashley, J.R., Baechtold, W., Dan A. Bathker, Brown, W.E., Collinet, J.-C.R., De Gruyl, J.A., Denson, C., Dunn, J.H., Engen, G.F., Foote, W.J., Hach, J.-P., Halford, J., Hall, J.A., Haroules, G.G., Higa, W.H., Hines, M.E., Hirano, K., Hollway, D.L., Howard, D.D., Johnson, W.A., Kanema, S., Kenney, J.M., Levy, G.S., McDaniel, A.V., Mukaihata, T., Nemoto, T., Okwit, S., Olson, K.W., Ondria, J.G., Otoshi, T.Y., Palka, F.M., Penzias, A.A., Peppiatt, H.J., Sann, K.H., Sherer, E.F., Schlosser, W.O., Searles, C.B., Seidel, B.L., Senitzky, B., Smith, J.G., Somlo, P.I., Stelzried, C.T., Strutt, M.J.O., Trembath, C.L., Wait, D.F.
Published in IEEE transactions on microwave theory and techniques (01.09.1968)