@Book{BVMC:668941,
author = {Velasco Bayón, Balbino},
author = {Herrero Jiménez, Mauricio},
author = {Montalvillo García, Julia},
author = {Pecharromán Cebrián, Segismundo},
title = {Colección documental de Cuéllar (934-1492). Volumen 1},
publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2014},
year = {2014},
url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmc447g8}
}