@misc{Verbeek_Jos_H._A._M._Psychosocial,
 author={Verbeek, Jos H. A. M. and van der Beek, Allard J.},
 copyright={Verbeek, Jos H. A. M.},
 copyright={van der Beek, Allard J.},
 howpublished={online},
 publisher={Nofer Institute of Occupational Medicine},
 publisher={Polish Association of Occupational Medicine},
 language={eng},
 type={serial - article},
 type={language document},
 title={Psychosocial factors at work and back pain: a prospective study in office workers},
}