Anna Loy et al.: Cranial morphometrics of the Apennine brown bear (Ursus arctos marsicanus) and preliminary notes on the relationships with other southern European populations. In: Italian Journal of Zoology. Jg. 75, Nr.1. Taylor & Francis, 2008, ISSN0373-4137, S.67–75 (Online [PDF]).
Paolo Ciucci, L. Boitani: The Apennine Brown Bear: A Critical Review of Its Status and Conservation Problems. In: Ursus. Jg. 19, Nr.2, 2008, ISSN1537-6176, S.130–145.
Anna Loy et al.: Cranial morphometrics of the Apennine brown bear (Ursus arctos marsicanus) and preliminary notes on the relationships with other southern European populations. In: Italian Journal of Zoology. Jg. 75, Nr.1. Taylor & Francis, 2008, ISSN0373-4137, S.67–75 (Online [PDF]).