@misc{Indulski_Janusz_A._System,
 author={Indulski, Janusz A. and Szubert, Zuzanna},
 copyright={Nofer Institute of Occupational Medicine},
 howpublished={online},
 publisher={Nofer Institute of Occupational Medicine},
 publisher={Polish Association of Occupational Medicine},
 language={eng},
 type={serial - article},
 type={language document},
 title={System for analysing sickness absenteeism in Poland},
}