@misc{Kepler_Johann_(1571-1630)_De,
 author={Kepler, Johann (1571-1630)},
 howpublished={online},
 publisher={Typis Andreæ Apergeri ; Sumptibus Sebastiani Mylii},
 language={lat},
 type={starodruk},
 title={De Cometis Libelli Tres. I. Astronomicvs, Theoremata continens de motu Cometarum, vbi Demonstratio Apparentiarum et altitudinis Cometarum qui Annis 1607 et 1618. conspecti sunt [...]. II. Physicvs, continens Physiologiam Cometarum nouam [...]. III. Astrologicvs, de significationibus Cometarum Annorum 1607 et 1608 [...]},
 keywords={komety, astronomia, astrologia},
}