1. Porous Permeable Materials: A Handbook, S. V. Belov, Ed. (Metallurgiya, Moscow, 1987), p. 77; p. 173 [in Russian].
2. V. I. Odelevskiĭ, Zh. Tekh. Fiz. 21, 667 (1951).
3. M. Yu. Balshin, Fundamentals of Powder and Fiber Metallurgy (Metallurgiya, Moscow, 1972), pp. 93–97 [in Russian].
4. G. N. Dulnev and Yu. P. Zarichnyak, Heat Conduction in Mixtures and Composite Materials (Énergiya, Leningrad, 1974), pp. 76–89 [in Russian].
5. L. Reinhold, G. Leuenberger, S. Makarov, et al., J. Nondestruct. Eval. 21, 1 (2002).