* {{EB1911|wstitle=Alexius III.|volume=1|pages=577-578|first=John Bagnell|last=Bury|authorlink=J. B. Bury}}
* C.M. Brand, ''Byzantium Confronts the West'' (Cambridge, MA, 1968)
* {{Kitap kaynağı|ref=harv|lastsoyadı=Ćirković|firstad=Sima|authorlink=Sima Ćirković|yearyıl=2004|titlebaşlık=The Serbs|location=Malden|publisheryayıncı=Blackwell Publishing|url=https://books.google.com/books?id=2Wc-DWRzoeIC}}
* {{Kitap kaynağı|ref=harv|lastsoyadı=Fine|firstad=John Van Antwerp Jr.|authorlink=John Van Antwerp Fine Jr.|titlebaşlık=The Late Medieval Balkans: A Critical Survey from the Late Twelfth Century to the Ottoman Conquest|yearyıl=1994|origyearözgünyıl=1987|location=Ann Arbor, Michigan|publisheryayıncı=University of Michigan Press|url=https://books.google.com/books?id=LvVbRrH1QBgC}}
*{{cite journal |titlebaşlık=Corinth in the Middle Ages|firstad=John H. |lastsoyadı=Finley, Jr. |journal=Speculum |volumecilt= 7 |number=No. 4 |yearyıl=1932 |ref=harv}}
* Jonathan Harris, ''Byzantium and the Crusades'', (2nd ed. London and New York, 2014). {{ISBN|978-1-78093-767-0}}
* Jonathan Harris, ''Constantinople: Capital of Byzantium'' (London and New York, 2007)
* {{Oxford Dictionary of Byzantium}}
* {{Web kaynağı | url = https://www.academia.edu/31064036/ | firstad = David | lastsoyadı = Savignac | titlebaşlık = The Medieval Russian Account of the Fourth Crusade - A New Annotated Translation | arşivengelli = evet}}
* {{Varzos-Komnenos Soyağacı | volume = B}}
* {{cite encyclopedia | lastsoyadı = Plate | firstad = William | authorlink = | titlebaşlık = Alexios III Angelos | editoreditör = [[William Smith (lexicographer)|William Smith]] | encyclopedia = [[Dictionary of Greek and Roman Biography and Mythology]] | volumecilt = 1 | pagessayfalar = 130 | yayıncı = [[Little, Brown and Company]] | location = Boston | yearyıl = 1867 | url = http://quod.lib.umich.edu/cgi/t/text/pageviewer-idx?c=moa;cc=moa;idno=acl3129.0001.001;q1=demosthenes;size=l;frm=frameset;seq=145;page=root;view=image}}
* {{A History of the Byzantine State and Society}}
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