@misc{Molnár_József_Calculate,
 author={Molnár, József and Molnír-Harnavas, Lívia},
 howpublished={online},
 publisher={Pedagogical University of Kraków},
 language={eng},
 title={Calculate with Lego-method! - practice for chemistry teachers},
 type={referat},
 type={artykuł z pracy zbiorowej},
 keywords={chemistry, basic panel, problem solving, building block, LEGO-Method},
}