@misc{Kister_Agnieszka._Efficiency,
 author={Kister, Agnieszka.},
 howpublished={online},
 publisher={Wydawnictwo UMCS},
 language={eng},
 type={artykuł},
 title={Efficiency of public hospitals - considerations of the essence and research problems},
 keywords={Polska, Szpitale publiczne},
}