TY - GEN ID - BVMC:687644 AU - Ptolomeo, Claudio AU - Jordanus Nemorarius TI - Ptolemaei Planisphaerium. Iordani Planisphaerium UR - https://www.cervantesvirtual.com/obra/ptolemaei-planisphaerium-iordani-planisphaerium-0 ER -