1. M. N. Wilson, Superconducting Magnets (Oxford Univ., London, 1983; Mir, Moscow, 1985).
2. M. Polak, I. Hasnik, and L. Krempasky, Cryogenics 13, 702 (1973).
3. A. V. Lykov, Theory of Thermal Conductivity (Vysshaya Shkola, Moscow, 1967) [in Russian].
4. N. A. Lavrov, V. K. Ozhogina, and V. R. Romanovskii, Zh. Tekh. Fiz. 78(4), 76 (2008) [Tech. Phys. 53, 466 (2008)].
5. V. R. Romanovskii, Zh. Tekh. Fiz. 70(5), 47 (2000) [Tech. Phys. 45, 1557 (2000)].