@misc{Bartholomaeus_de_Usingen_(1465-1532)_Regvle,
 author={Bartholomaeus de Usingen (1465-1532)},
 address={Kraków},
 howpublished={online},
 publisher={Ungler, Florian ( -1536). Druk.},
 publisher={Szarfenberg, Marek (14..-1545). Wyd.},
 language={lat},
 title={Regvle congruitatis & figure constructio[n]is, cu[m] vicijs & figuris talia ex cusantibus},
 type={stary druk},
}