@misc{Sterling_Władysław_(c._1876_–_c._1943)_O_1907,
 author={Sterling, Władysław (c. 1876 – c. 1943)},
 copyright={Public Domain},
 address={Warszawa},
 address={(Warszawa},
 howpublished={online},
 year={1907},
 publisher={Józef Polak},
 publisher={(W drukarni Stanisława Niemiery)},
 language={pol},
 title={O mierzeniu zmęczenia umysłowego},
 type={Text},
 URL={http://rcin.org.pl/Content/31420/PDF/WA004_32058_T2852_Sterling-O-mierzeniu.pdf},
 keywords={mental work, psycholofy of fatigue},
}