@misc{Piwczyński_Dariusz_Statistical,
 author={Piwczyński, Dariusz and Sitkowska, Beata and Nogalski, Zenon},
 howpublished={online},
 publisher={Elsevier},
 language={eng},
 type={artykuł},
 title={Statistical modeling of calving ease and stillbirths in dairy cattle using the classification tree technique},
 keywords={calving ease, cows, Holstein-Friesian, decision tree, stillbirths},
}