1. Millimeter wave point-contact and junction diodes;Burrus;Proc. IEEE,1966
2. High power frequency multiplication using beam lead varactors in arrays;Horton;Proc. IEEE,1967
3. C-band nondegenerate parametric amplifier with 500-Mc bandwidth;Kliphuis;Proc. IRE,1961
4. “Varactor Applications.”;Penfield,1962