@Book{BVMC:1290077,
author = {Universidad de Salamanca (España)},
author = {Covarrubias y Leyva, Diego de},
author = {Martín V, Papa},
title = {Constituciones, 1422},
url = {https://www.cervantesvirtual.com/obra/constituciones-1422-1290077}
}