@Article{BVMC:280131, author = {Sanchis y Sivera, José}, title = {Un breve del papa Alejandro VI}, journal = {Boletín de la Real Academia de la Historia. Tomo 87, Año 1925}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2010}, year = {2010}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmc8g951} }