@misc{Schaum_Eggebert_De,
 author={Schaum, Eggebert},
 address={Francofurti ad Oderam},
 howpublished={online},
 publisher={Hartmann, Friedrich},
 language={lat},
 language={grc},
 type={text},
 title={De Annulis Eorumque Jure Et Usu Collectanea Eggeberti Schaumii [...].},
 keywords={prawo, 17 w., pierścienie, sygnety},
}