@misc{_Cosi,
 address={Kraków},
 howpublished={online},
 publisher={Drukarnia Wydawnicza im. W. L. Anczyca},
 language={pol},
 type={plakat},
 title={Cosi fan Tutte : Wolfgang Amedeus Mozart},
 keywords={Plakaty operowe - Polska - 1990},
}