REFERENCES
- Engelbrecht, R. S., Proc. IRE, 50 (3) (1962), 312.
- Triphonov, V. I., Badio Engineering & Electronics (USSR), 8 (9) (1963), 1963.
- Howson, D. P. & Szerlip, A., Radio & Electronics Engineering, 27 (6) (1964), 425.
- Karassev, M. D. & Sharkov, E. A., Herald of Moscow University (Vestnik Moskovskogo Univer siteta), USSR, (N4) (1967), 112.
- Karassev, M. D., Soviet Physics Uspekhi, 69 (Oct. 1959), 217.
- Karassev, M. D., Radio Engineering & Electronics (USSR), 6(5) (1961), 779.