@Misc{BVMC:1147726,
author = {Ostos Salcedo, Pilar},
title = {La cancillería de Alfonso VIII, rey de Castilla (1158-1214). Una aproximación},
publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2022},
year = {2022},
url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmc1147726}
}