Pennisi, Maddalena, Emma Di Gregorio, Serena Carbone, and Livia Vittori Antisari. 2010. “BORON CONCENTRATION IN HUMIC AND FULVIC ACID EXTRACTS OF SOIL EPIPEDON IN SAN VITALE PINEWOOD (RAVENNA, ITALY)”. EQA - International Journal of Environmental Quality 4 (4):1-6. https://doi.org/10.6092/issn.2281-4485/3799.