@book{139443,
	author = {Oresme, Nicole and Copernicus, Nicolaus},
	title = {Tratado de la primera invención de las monedas},
	publisher = {Ediciones Orbis},
	year = {1985.},
	address = {Barcelona},
	note = {Translation of: Tractatus de origine, natura, jure, et matationibusmonetarum and Monete cudende ratio.}
}