1. A. V. Lykov, Theory of Heat Conduction [in Russian], Vysshaya Shkola, Moscow (1967).
2. M. D. Mikhailov (Michailov), Forsch. Ing. -Wes.,32, No. 4, No. 5 (1966).
3. M. D. Mikhailov, Nonstationary Heat and Mass Transfer in One-Dimensional Bodies [in Russian], ITMO AN BSSR, Minsk (1969).
4. G. P. Ivanov and V. Ya. Lyubov, Dokl. Akad. Nauk SSSR,35, No. 5 (1952).
5. �. M. Gol'dfarb, Zh. Tekh. Fiz.,24, No. 6 (1954).