@book {Hajnal1954,
	title = {L{\textquoteright}enseignement de l{\textquoteright}{\'e}criture aux universit{\'e}s m{\'e}di{\'e}vales},
	year = {1954},
	note = {<p>Deuxi{\`e}me {\'e}dition revue, corrig{\'e}e et augment{\'e}e des manuscrits posthumes de l{\textquoteright}auteur, avec un album de fac- simil{\'e}s par Laszlo Mezey</p>},
	pages = {301, 12 p. planches},
	publisher = {Acad{\'e}mi{\'e} des sciences de Hongrie},
	organization = {Acad{\'e}mi{\'e} des sciences de Hongrie},
	edition = {2},
	address = {Budapest},
	author = {Hajnal, Istvan}
}
@article {Hajnal1952,
	title = {Univertsities and the development of writing in the XIIth{\textendash}XIIIth Centuries},
	journal = {Scriptorium},
	volume = {6},
	year = {1952},
	pages = {177{\textendash}195},
	author = {Hajnal, Istvan}
}
