Papp, Géza. “Examinations on the Air Quality in Berehove (Beregszász, Ukraine) Between 1997 and 2007”. Acta Geographica Debrecina Landscape & Environment series 2, no. 1 (December 31, 2008): 25–33. Accessed November 22, 2024. https://ojs.lib.unideb.hu/landsenv/article/view/2219.