1. V. F. Babanin, V. I. Trukhin, L. O. Karpachevskii, et al., Magnetism of Soils (Yaroslavl, 1995) [in Russian].
2. A. R. Geptner, Kh. Kristmannsdokhtir, and M. A. Selezneva, “Secondary Basaltic Minerals Modified by Hydrothermal Brine on the Reykjanes Peninsula (Iceland),” Litol. Polezn. Iskop., No. 2, 25–41 (1987).
3. A. R. Geptner, T. A. Ivanovskaya, and E. V. Pokrovskaya, “Hydrothermally Modified Clay Sediments in the Rift Zone of Iceland (Effect of Microbiota on the Accumulation of Trace Elements),” Litol. Polezn. Iskop., No. 4, 371–384 (2006).
4. I. P. Gerasimov and O. A. Chichagova, “Subarctic Peaty-Soddy Volcanic Soils of Iceland,” in Genesis and Geography of Foreign Soils Studied by Soviet Geographers: Scientific Papers Devoted to the VIII International Congress of Soil Science in Bucharest, Romania, 1964 (Moscow, 1964), pp. 111–128 [in Russian].
5. D. S. Orlov and N. M. Grindel’, “Spectrophotometric Determination of Humus in the Soil,” Pochvovedenie, No. 1, 112–122 (1967).