TY - GEN ID - BVMC:688043 AU - Clavius, Christoph TI - Christophori Clauii ... in Sphaeram Ioannis de Sacro Bosco commentarius UR - https://www.cervantesvirtual.com/obra/christophori-clauii--in-sphaeram-ioannis-de-sacro-bosco-commentarius ER -