Prilutskaya, Natal’ya S., Tat’yana A. Korel’skaya, and Lyudmila F. Popova. “STUDY OF STRUCTURAL AND FUNCTIONAL COMPOSITION OF SOIL HUMUS ACIDS OF EURO-ARCTIC REGION BY MOLECULAR ABSORPTION SPECTROSCOPY (UV / VISIBLE)”. ChemChemTech 61, no. 2 (January 29, 2018): 97-103. Accessed August 8, 2025. https://ctj-isuct.ru/article/view/270.