Sári, Sz., N. Kappel, B. Z. Sipos, and E. Forró. “The Effect of Soil Coverage on the Soil Quality”. International Journal of Horticultural Science 9, no. 1 (April 14, 2003): 77–80. Accessed August 9, 2022. https://ojs.lib.unideb.hu/IJHS/article/view/381.