Helena Angelina Ducena (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Helena Angelina Ducena" in Portuguese language version.

refsWebsite

Global rank Portuguese rank

26^th place

65^th place

182^nd place

362^nd place

jstor.org

Geanakoplos, "Greco-Latin Relations on the Eve of the Byzantine Restoration: The Battle of Pelagonia-1259", Dumbarton Oaks Papers, 7 (1953), p. 104

treccani.it

Koller, Walter (2007). "MANFREDI, re di Sicilia." Dizionario Biografico (em italiano). 68. Roma