@Article{372499, author = "Ivelin Ivanov", title = "Tsar Samuel Against Emperor Basil II: Why Did Bulgaria Loose the Battle with the Byzantine Empire at the Beginning of the 11th Century", year = 2011, volume = 1, number = , journal = Studia Ceranea : journal of the Waldemar Ceran Research Centre for the History and Culture of the Mediterranean Area and South-East Europe, pages = s. 205-213, }