www.archiviopug.org

Anchor text: Historical Archives of the Pontifical Gregorian University

Wikipedia: Pontifical Gregorian University

Anchor text: Manuscripts versions of ''Clavis Prophetarum'' (XVIII) in the Historical Archive of the Pontifical Gregorian University

Wikipedia: António Vieira

Anchor text: Lacunza's works

Wikipedia: Manuel Lacunza

Anchor text: UGO TARABORRELLI, ''Apologia dell’infallibilità papale e censura dei costumi: i manoscritti di Tirso González de Santalla (1624-1705) in APUG''

Wikipedia: Thyrsus González de Santalla

Anchor text: Uno schizzo inedito del Padre Grassi per la lanterna di Sant'Ignazio (Roma)

Wikipedia: Orazio Grassi