@misc{Heweliusz_Jan_(1611-1687)_Johannis, author={Heweliusz, Jan (1611-1687)}, howpublished={online}, publisher={Autoris Typis et Sumptibus imprimebat Simon Reiniger}, language={lat}, type={starodruk}, title={Johannis Hevelii Mercurius in Sole visus Gedani Anno Christiano MDCLXI [...]}, }