@book {1234,
	title = {L{\textquoteright}aventure s{\'e}miologique},
	year = {1991},
	publisher = {Seuil},
	organization = {Seuil},
	address = {Paris},
	author = {Barthes, Roland}
}
@book {320,
	title = {La Chambre claire. Note sur la photographie},
	year = {1980},
	pages = {192},
	publisher = {Gallimard},
	organization = {Gallimard},
	address = {Paris},
	author = {Barthes, Roland}
}
