@Misc{BVMC:258173, author = {Trithemius, Johannes}, title = {Liber de triplici regione claustralium [et] spirituali exercicio monachorum ...}, url = {https://www.cervantesvirtual.com/obra/liber-de-triplici-regione-claustralium-et-spirituali-exercicio-monachorum} }