LOPEZ, A. F.; MUNOZ, R.; SIERRA, J. C. On the classification of non-big Ulrich vector bundles on fourfolds. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, [S. l.], v. 26, n. 2, p. 707-755, 2025. DOI: 10.2422/2036-2145.202208_024. Disponível em: https://journals.sns.it/index.php/annaliscienze/article/view/5966. Acesso em: 20 feb. 2026.