@misc{Peucer_Kaspar_(1525–1602)_Elementa_1558,
 author={Peucer, Kaspar (1525–1602) and Krafft, Johann (c. 1510 – 1578). Druk},
 copyright={Public Domain},
 address={Vitebergae},
 howpublished={online},
 year={1558},
 publisher={Excvdebat Iohannes Crato},
 language={lat},
 title={Elementa Doctrinae De Circvlis Coelestibvs Et Primo Motv : Recognita Et Correcta},
 URL={http://www.rcin.org.pl/Content/56377/PDF/WA058_4644_K7416_Elementa-Peuceru.pdf},
 keywords={early printed books, early works to 1800, astronomy, Solar System, celestial mechanics},
}