1. W. D. Kemper, Soil Sci. Soc. Am. J. 25, 260 (1961).
2. B. F. Rel’tov and N. A. Novitskaya, Izv. VNIIG 51, 94 (1954).
3. C. Dirksen, Soil Sci. Soc. Am. J. 33, 821 (1969).
4. T. Grundl and P. Michalski, Water Res. 301, 811 (1996).
5. S. D. Voronkevich, S. N. Emel’yanov, and V. I. Sergeev, in Problems of the Mechanics of Natural Processes (Mosk. Gos. Univ., Moscow, 1983), p. 47 [in Russian].