PIGNATTI, S., H. ELLENBERG, and S. PIETROSANTI. “ECOGRAMS FOR PHYTOSOCIOLOGICAL TABLES BASED ON ELLENBERG”. Annali di Botanica 54 (April 2, 1996). Accessed July 22, 2024. https://rosa.uniroma1.it/rosa04/annali_di_botanica/article/view/9021.