@misc{Sylvius_Alexius_Lunae, author={Sylvius, Alexius}, howpublished={online}, publisher={Vetter Daniel}, language={lat}, type={starodruk}, title={Lunae circulares periodi seu cycli quorum beneficio Novi- Pleni-lunia cùm civiliter tùm astronomicè facili negotio et exactè reperiuntur}, keywords={astronomia 17w., księżyc}, }