Друго бугарско царство — разлика између измена

* {{Cite book|ref=harv|last=Fine|first=John V. A.|authorlink=Џон ван Антверп Фајн|title=The Early Medieval Balkans: A Critical Survey from the Sixth to the Late Twelfth Century|year=1991|origyear=1983|location=Ann Arbor, Michigan|publisher=University of Michigan Press|url=https://books.google.com/books?id=Y0NBxG9Id58C}}

* {{Cite book |ref= harv|last=Fine|first=John Van Antwerp|authorlink=Џон ван Антверп Фајн|title=The late medieval Balkans: a critical survey from the late twelfth century to the Ottoman Conquest|url=https://books.google.com/books?id=RiNpAAAAMAAJ|date=January 1987|publisher=University of Michigan Press|isbn=978-0-472-10079-8}}

 

== Види још ==

* [[Прво бугарско царство]]

 

== Спољашње везе ==