1. Investigation of Propagation of Radiowaves, edited byB. A. Vvedensky, a symposium; published by the Academy of Sciences of the USSR, Moscow, 1948 (in Russian).a)M. A. Leontovič, pp. 5–12;b)M. A. Leontovič andV. A. Fock, pp. 13–39;V. A. Fock, pp. 40–68;c)G. A. Grünberg andV. A. Fock, pp. 69–96;d)E. L. Feinberg, pp. 97–215.
2. M. A. Leontovič:Izv. Akad. Nauk SSSR (Bull. of the USSR Acad. of Sci.), physical series,8, 16 (1944) (in Russian).
3. M. A. Leontovič andV. A. Fock:Journ. of Phys.,10, 13 (1946).
4. G. A. Grünberg:Journ. of Phys.,6, 185 (1942);Phys. Rev.,63, 185 (1943).
5. E. L. Feinberg:Izv. Akad. Nauk SSSR (Bull. of the USSR Acad. of Sci.) physical series,7, 168 (1943) (in Russian).