Tovstyi, Yu.M., and Ye.V. Skrylnyk. “Change in the Humus State of Chernozem Podzolized After Application of Organic Fertilizers”. AgroChemistry and Soil Science 87 (October 1, 2018): 107–111. Accessed July 16, 2026. https://agrochemsoilsci.org/index.php/journal/article/view/129.