@misc{Piotrkowczyk_Tomasz_(?-1562)_Ephemerides,
 author={Piotrkowczyk, Tomasz (?-1562)},
 howpublished={online},
 publisher={Andrysowicz Łazarz},
 language={lat},
 type={starodruki},
 title={Ephemerides constellationum coelestium Electionumque. Ad annum [...] 1560 bissextilem. Per Thomam Piotrcovium [...] conscriptae},
 keywords={astrologia 16w., astronomia 16w., kalendarze 16w.},
}