@misc{Marth_Egon_The,
 author={Marth, Egon and Jelovcan, Sandra and Kleinhappl, Barbara and Gutschi, Andrea and Barth, Sonja},
 copyright={Marth, Egon},
 copyright={Jelovcan, Sandra},
 copyright={Kleinhappl, Barbara},
 copyright={Gutschi, Andrea},
 copyright={Barth, Sonja},
 howpublished={online},
 publisher={Instytut Medycyny Pracy w Łodzi im. prof. J. Nofera},
 publisher={Polskie Towarzystwo Medycyny Pracy},
 language={eng},
 type={czasopismo - artykuł},
 type={dokument piśmienniczy},
 title={The effect of heavy metals on the immune system at low concentrations},
}