@Misc{BVMC:222155,
author = {Benito Ruano, Eloy},
title = {Los orígenes del problema converso},
publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2003},
year = {2003},
url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmcxp6z4}
}