Pietrzak, Stefan, and Jakub T. Hołaj-Krzak. “The Content and Stock of Organic Carbon in the Soils of Grasslands in Poland and the Possibility of Increasing Its Sequestration”. Journal of Water and Land Development 54, no. 54 (October 30, 2022): 68–76. Accessed October 20, 2026. https://wydawnictwo.pan.pl/index.php/jwld/article/view/4718.