[Second additions to the vascular flora of the Umbria region (central Italy)]. Natural History Sciences, [S. l.], v. 3, n. 1, p. 21–26, 2016. DOI: 10.4081/nhs.2016.273. Disponível em: https://sisn.pagepress.org/nhs/article/view/273. Acesso em: 23 jun. 2025.