G. . Belyaeva, “MICRO (MATSERALNY) COMPOSITION OF ORGANIC MATTER HUMUS YARUDEYSKIY PARAMETRIC WELLS 38”, ВПФИЦ, no. 3, pp. 20–25, Jan. 2016, Accessed: May 05, 2026. [Online]. Available: https://journal-dev.icmm.ru/index.php/pscj/article/view/PSCJ2015n3p3