@misc{Bilek_Martin_Chemical,
 author={Bilek, Martin and Rychtera, Jiří and Hlavackova, Jana},
 howpublished={online},
 publisher={Pedagogical University of Kraków},
 language={eng},
 title={Chemical experiments in the process of developing key competences},
 type={referat},
 type={artykuł z pracy zbiorowej},
 keywords={key competences, chemical experiments},
}