@misc{Regiomontanus_Johannes_(1436-1476)_Problemata_1534, author={Regiomontanus, Johannes (1436-1476)}, contributor={Schöner, Johannes (1477-1547) and Hessus, Helius Eobanus (1488-1540)}, year={1534}, rights={Domena publiczna (Public domain)}, publisher={[Petreius, Johann (1497-1550). Drukarz]}, language={lat}, title={Problemata XXIX. Saphaeae Nobilis Instrumenti Astronomici, [...]}, type={stary druk}, keywords={astronomia - dzieła przed 1800}, }