BIANCARDI, Carlo M.; GNOLI, Claudio G. A review of Sciurus Group studies on the red squirrel (Sciurus vulgaris): presence, population density and colour phases in Lombardy (Italy). Natural History Sciences, [S. l.], v. 3, n. 2, p. 27–34, 2016. DOI: 10.4081/nhs.2016.287. Disponível em: https://sisn.pagepress.org/nhs/article/view/287. Acesso em: 21 nov. 2024.