Demeter, András, Dominika Falvai, Petra Trenyik, and Szilárd Czóbel. 2017. “Ecological Indicator Based Comparative Study of Tree of Heaven (Ailanthus Altissima) stands’ Herb Layer”. COLUMELLA – Journal of Agricultural and Environmental Sciences 4 (1): 15-20. https://doi.org/10.18380/SZIE.COLUM.2017.4.1.15.