1. L. I. MAISSEL, ?Handbook of Thin Film Technology?, edited by L. I. Maissel and R. Glang (McGraw Hill, New York, 1970) p. 18?4.
2. R. W. BERRY and D. J. SLOANE,Proc. IRE 47 (1959) 1070.
3. H. J. DEGENHART, Proceedings of the Electron Components Conference (1967) p. 84.
4. E. R. BOWERMAN, J. W. CULP, E. F. HUDOCK, F. LEDER and H. J. DEGENHART, Proceedings of the Electron Components Conference (1963) p. 158.
5. F. HUBER, IEEE Trans. Components Pts. CP11, (1964) 38.