Nagy, Ildikó, and János Tamás. “Optimization of Density of Sugar Beet (Beta Vulgaris L.) Production Quotas by Pointwise Geostatistic Methods”. Acta Agraria Debreceniensis, no. 18 (March 4, 2005): 46–50. Accessed May 2, 2024. https://ojs.lib.unideb.hu/actaagrar/article/view/3246.