@book {Valois1881,
	title = {{\'E}tude sur le rhythme des bulles pontificales},
	series = {Biblioth{\`e}que de l{\textquoteright}{\'E}cole des chartes},
	number = {13},
	year = {1881},
	publisher = {A. Picard},
	organization = {A. Picard},
	address = {Paris},
	author = {Valois, No{\"e}l}
}
@book {Valois1880,
	title = {De arte scribendi epistolas apud Galicos medii aevi scriptores rhetoresque},
	series = {Bibliothequede l{\textquoteright}Ecole de Chartres},
	number = {22},
	year = {1880},
	note = {<p>преизд. New York s.d</p>},
	publisher = {A. Picard},
	organization = {A. Picard},
	address = {Paris},
	author = {Valois, No{\"e}l}
}
