Várallyai, László, Béla Kovács, and József Prokisch. “Developing of Decision Support Soil Information Monitoring System by Statistical Analysis”. Acta Agraria Kaposváriensis 8, no. 3 (October 15, 2004): 163–169. Accessed December 5, 2025. https://journal.uni-mate.hu/index.php/aak/article/view/1730.