1. S. V. Denbnovetskii and G. F. Semenov, Memorizing Electron-Beam Tubes in Information-Processing Systems [in Russian], Sov. Radio, Moscow (1973).
2. B. W. Faughnan, I. Gorog, P. M. Heyman, and I. Shidlovsky, Proc. IEEE,61, No. 7, 927 (1873).
3. Y. Uno, I. Matsuda, Y. Hanaoka, S. Fujii, M. Saito, and Y. Yoshikoshi, Electron. Navig. Rev., No. 15, 11 (1973).
4. W. Phillips and Z. T. Kiss, Proc. IEEE,56, No. 11, 2072 (1968).
5. P. M. Heyman, I. Gorog, and B. Faughnan, IEEE Trans. Electron. Devices,18, No. 9, 685 (1971).