@inbook {Панкевич1951,
	title = {Острожницькi пергамiновi листки ХІ{\textendash}ХІІ столiття},
	booktitle = {Jazykov{\`\i}dn{\'y} sborn{\'\i}k},
	volume = {5},
	year = {1951},
	pages = {248{\textendash}258},
	author = {Панькевич, I.}
}
