1. O. N. Grigorov, V. P. Koz'mina, A. V. Markovich, and D. N. Fridrikhsberg, The Electrical Properties of Capillary Systems [in Russian], Izd AN SSSR (1956).
2. N. N. Lebedev and I. P. Skal'skaya, ZhTF,32, No. 3 (1962).
3. G. M. Panchenkov and L. K. Tsabek, ZhFKh,42, No. 5 (1968).