@Misc{BVMC:688037, author = {Clavius, Christoph}, title = {Fabrica et vsus instrumenti ad horologiorum descriptionem per opportuni : accesit ratio describendarum horarum a meridie & media nocte ...}, url = {https://www.cervantesvirtual.com/obra/fabrica-et-vsus-instrumenti-ad-horologiorum-descriptionem-per-opportuni--accesit-ratio-describendarum-horarum-a-meridie--media-nocte-} }