@misc{Opitz_Martin_(1597–1639)_Martini,
 author={Opitz, Martin (1597–1639)},
 howpublished={online},
 publisher={Müller David},
 language={lat},
 language={ger},
 type={starodruki},
 title={Martini Opitzii Viel Gut.},
 keywords={poezja niemiecka 17w.},
}