by Payer, S.F., Moore, R.A., Pincoffs, P.H.
Published in IEEE transactions on microwave theory and techniques (01.08.1970)

by BeaI, J.C., Courtney, W.E., Dewar, W.J., Gallawa, R.L., Gardiol, F.E., Glaser, J.I., Govaerts, R.J.M., Kaufman, I., Mendez, H.A., Moore, R.A., Payer, S.F., Pincoffs, P.H., Schulz-DuBois, E.O., Vander Vorst, A.S.
Published in IEEE transactions on microwave theory and techniques (01.08.1970)