On the notion of bimodel for functorial semantics. - Francis Borceux; Enrico M. Vitale (Appl. Categorical Struct., 1994)

Regularity of the category of Kelley spaces. - Francesca Cagliari; Sandra Mantovani; Enrico M. Vitale (Appl. Categorical Struct., 1995)

Azumaya Categories. - Francis Borceux; Enrico M. Vitale (Appl. Categorical Struct., 2002)

On Fibrations Between Internal Groupoids and Their Normalizations. - Pierre-Alain Jacqmin; Sandra Mantovani; Giuseppe Metere; Enrico M. Vitale (Appl. Categorical Struct., 2018)