@misc{Bartholomaeus_de_Usingen_(1465-1532)_Regule,
 author={Bartholomaeus de Usingen (1465-1532)},
 address={Kraków},
 howpublished={online},
 publisher={Szarfenberg, Maciej ( -1547). Druk.},
 publisher={Szarfenberg, Marek (14..-1545). Wyd.},
 language={lat},
 title={Regule congruitatis et figure constructio[n]is: summa diligentia emendante: correcteq[ae] cum vicijs grammaticalibus et figuris talia excusantibus},
 type={stary druk},
}