@Book{BVMC:570782, author = {Almaraz, Enrique, Obispo de Palencia}, title = {Informe sobre el Real Monasterio de San Andrés de Arroyo (Alar del Rey).}, publisher = {Palencia}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmcsx7x9} }