Gregorio IX (Spanish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Gregorio IX" in Spanish language version.

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3,314^th place

low place

fiu.edu

O'Callaghan, Joseph F. (2004). Reconquest And Crusade In Medieval Spain (en inglés). University of Pennsylvania Press. p. p.92. ISBN 0812218892.

Coscollá, Vicente (2004). La Valencia musulmana. Carena Editors. p. p.53. ISBN 8487398758.

Entre gloire curiale et vie commune: le chapitre cathédral d'Anagni au XIIIe siècle, Pascal Montaubin, Mélanges de l'École française de Rome, numéro109-2, 1997, pp.303-442.