Gigante, Daniela, e Roberto Venanzoni. «Some remarks about the annual sub-nitrophilous vegetation of Thero-Brometalia in Umbria (central Italy)». Lazaroa 28 (janeiro 1, 2007): 15–34. Acedido agosto 1, 2026. https://revistas.ucm.es/index.php/LAZA/article/view/LAZA0707110015A.