1. E. E. Bibik, Rheology of Dispersion Systems (Leningrad State Univ., Leningrad, 1981) [in Russian].
2. Yu. G. Frolov, Structure Formation in Disperse Systems. Rheological Properties of Structures (Moscow Inst. Chem. Technol., Moscow, 1980) [in Russian].
3. A. F. Tyulin, Organo-Mineral Colloids in Soil: Their Origin and Role in Root Nutrition of Higher Plants (USSR Acad. Sci., Moscow, 1958) [in Russian].
4. N. I. Gorbunov and L. P. Abrukova, Pochvovedenie, No. 8, 74–85 (1974).
5. Yu. G. Frolov, Course of Colloid Chemistry (Khimiya, Moscow, 1982) [in Russian].