@misc{Puchalski_Krzysztof_Involvement,
 author={Puchalski, Krzysztof and Korzeniowska, Elżbieta},
 copyright={Nofer Institute of Occupational Medicine},
 howpublished={online},
 publisher={Nofer Institute of Occupational Medicine},
 publisher={Polish Association of Occupational Medicine},
 language={pol, eng},
 type={language document},
 type={serial - article},
 title={Involvement of Polish enterprises in workplace health promotion. Trends observed in 1998-2001},
}