@misc{Zawadzki_Witold_Catalysts,
 author={Zawadzki, Witold},
 howpublished={online},
 publisher={Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej},
 language={eng},
 type={artykuł},
 title={Catalysts preparation and investigation: laboratory exercise for students},
 keywords={catalyst preparations, laboratory course for international students, Maria Curie-Sklodowska University},
}