1. E. V. Arinushkina, Handbook on the Chemical Analysis of Soils (Mosk. Gos. Univ., Moscow, 1970) [in Russian].
2. I. I. Vasenev and V. O. Targulian, Windfall and Taiga Pedogenesis (Nauka, Moscow, 1995) [in Russian].
3. L. A. Vorob’eva and A. A. Avdon’kin, “The pH Dependence of Potential Acidity,” Vestn. Mosk. Univ., Ser. 17: Pochvoved., No. 1, 3–7 (2003).
4. L. A. Vorob’eva, Chemical Analysis of Soils (Mosk. Gos. Univ., Moscow, 1998) [in Russian].
5. L. A. Grishina and T. A. Baranova, “Effect of Acid Precipitation on Soil Properties in the Southern Taiga Forest Ecosystems,” Pochvovedenie, No. 10, 121–136 (1990).