TY - GEN ID - BVMC:760473 AU - Regiomontanus, Johannes TI - Aureus hic liber est: non est preciosior ulla Ge[m]ma kalendario UR - https://www.cervantesvirtual.com/obra/aureus-hic-liber-est-non-est-preciosior-ulla-gemma--kalendario ER -