Soldatova, Evgeniya A., and Dariya V. Purgina. “Behavior and Transformation of Nitrogen Compounds in the Soil-Ground Water System Within the Agricultural Landscapes of Western Siberia”. Proceedings of Voronezh State University. Series: Geography. Geoecology0, no. 4 (November 20, 2020): 32-43. Accessed December 5, 2025. https://journals.vsu.ru/geo/article/view/3063.