Pölös, Endre, Attila Hüvely, Judit Pető, and Ferenc Baglyas. “Lichens As Potential Indicators of Environmental Harm”. Review on Agriculture and Rural Development 3, no. 1 (January 1, 2014): 193–197. Accessed December 20, 2024. https://iskolakultura.hu/index.php/rard/article/view/13421.