@misc{Opitz_Martin_Opera,
 author={Opitz, Martin},
 howpublished={online},
 publisher={b. w.},
 language={ger},
 title={Opera Poetica... [T.1]},
 type={stary druk},
 keywords={poemat, literatura niemiecka - 17 w., Opitz, Martin (1597-1639)},
}