Braun, Mihály, Zita Margitai, Albert Tóth, and Martine Leermakers. “Environmental Monitoring Using Linden Tree Leaves As Natural Traps of Atmospheric Deposition: A Pilot Study in Transilvania, Romania”. Acta Geographica Debrecina Landscape & Environment series 1, no. 1 (December 31, 2007): 24–35. Accessed May 6, 2024. https://ojs.lib.unideb.hu/landsenv/article/view/2209.