Papa Sérgio IV (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Papa Sérgio IV" in Portuguese language version.

refsWebsite

Global rank Portuguese rank

3^rd place

6^th place

471^st place

148^th place

281^st place

112^th place

books.google.com

Alphonsus Ciaconius (Alfonso Chacón) (1677). Agostinus Olduinus (ed.). Vitae et res gestae pontificum romanorum: et S.R.E. cardinalium (in Latin). Tomus primus. Roma: P. et A. De Rubeis. p. 765.
Jules Auguste Lair (1899). Bulle du pape Sergius IV.: Lettres de Gerbert (in French and Latin). Paris: A. Picard et fils. pp. 1–88.
Carl Erdmann (1965). Die Entstehung des Kreuzzugsgedankens. Stuttgart: W. Kohlhammer.
Aleksander Gieysztor (1950). The Genesis of the Crusades: The Encyclical of Sergius IV (1009-1012).

Mann, Horace. "Pope Sergius IV." The Catholic Encyclopedia Vol. 13. New York: Robert Appleton Company, 1912. 8 November 2017