Várallyay, Szilvia, Diána Szilva, Áron Soós, and Béla Kovács. 2016. “Comparative Analysis of Sample Preparation Methods to Determine the Concentration of Arsenic in Soil- and Plant-Samples”. Acta Agraria Debreceniensis, no. 69 (March):167-70. https://doi.org/10.34101/actaagrar/69/1807.