D. Gigante and R. Venanzoni, “Some remarks about the annual sub-nitrophilous vegetation of Thero-Brometalia in Umbria (central Italy)”, Lazaroa, vol. 28, pp. 15–34, Jan. 2007, Accessed: Feb. 17, 2025. Available: https://revistas.ucm.es/index.php/LAZA/article/view/LAZA0707110015A