@misc{Kepler_Johannes_(1571-1630)_Joannis,
 author={Kepler, Johannes (1571-1630)},
 howpublished={online},
 publisher={Gottfried Tambach},
 publisher={Jacob Bartsch},
 language={lat},
 type={starodruk},
 title={Joannis Keppleri Math. Caes. Admonitio Ad Astronomos, Rerumqve Coelestium Studiosos, De raris mirisq[ue] Anni 1631. Phænomenis, Veneris Pvta Et Mercvrii in Solem incursu},
}