1. A. S. Zaimovskii, V. V. Kalashnikov, and P. S. Golovnin, Nuclear Reactor Fuel Elements [in Russian], Gosatomizdat, Moscow (1962), p. 265.
2. G. P. Novoselov and A. T. Ageenkov, Report No. 11/755 Submitted to the 36th International Congress on Industrial Chemistry, Brussels (1966)
3. N. P. Glukhanov and V. N. Bogdanov, High-Frequency Induction Welding of Metals [in Russian], Mashgiz, Moscow (1962), p. 96.
4. G. P. Novoselov and A. T. Ageenkov, At. Énerg.,26, 230 (1969).
5. Atomic Energy Reviews, Vol. 8, IAEA, Vienna (1970), p. 3 [in Russian edition].