@Misc{BVMC:258231,
author = {Ortega, Juan de, (O.P.)},
author = {Pérez de Moya, Juan},
title = {Tractado subtilissimo d'arithmética y geometria},
url = {https://www.cervantesvirtual.com/obra/tractado-subtilissimo-darithmetica-y-geometria}
}