S. N. Lessovaia, A. A. Sokolov Clay Mineralogy of Soils on Hard Calcareous Substrates of the Lena-Angara Plateau // ISSN 0147-6874, Moscow University Soil Science Bulletin, 2025, Vol. 80, No. 1, pp. 41–49. © Allerton Press, Inc., 2025. Russian Text © The Author(s), 2025, published in Vestnik Moskovskogo Universiteta, Seriya 17: Pochvovedenie, 2025, No. 1, pp. 51–60