@article {Havlik1989,
	title = {Bulgaria and Moravia between Byzantium, the Franks and Rome},
	journal = {Palaeobulgarica / Старобългаристика},
	volume = {13},
	year = {1989},
	pages = {5{\textendash}20},
	author = {Havl{\'\i}k, Lubom{\'\i}r E.}
}
