@article {Pljakov1986,
	title = {La r{\'e}gion de la Moyenne Struma aux XIe{\textendash}XIIe si{\`e}cles},
	journal = {Palaeobulgarica / Старобългаристика},
	volume = {10},
	year = {1986},
	pages = {73{\textendash}85},
	author = {Pljakov, Zdravko}
}
