@misc{Opitz_Martin_(1597–1639)_Oratio,
 author={Opitz, Martin (1597–1639)},
 address={[S.l.]},
 howpublished={online},
 publisher={Voegelin},
 language={lat},
 title={Oratio Ad Serenissimum Ac Potentissimum Principiem Fridericum Regem Bohemiae},
 type={tekst},
 keywords={Wrocław, Fryderyk I  (król Czech ; 1596-1632), 17 w., druki okolicznościowe, Wratislaviana},
}