@misc{Podraza_Roman_Credibility,
 author={Podraza, Roman and Walkiewicz, Mariusz and Dominik, Andrzej},
 howpublished={online},
 publisher={Wydaw. Uniwersytetu Marii Curie-Skłodowskiej},
 language={eng},
 type={artykuł},
 title={Credibility coefficients based on frequent sets},
}