@misc{Przybylski_Grzegorz_Polish,
 author={Przybylski, Grzegorz},
 copyright={Pujszo, Ryszard},
 address={Bydgoszcz},
 howpublished={online},
 publisher={[s.n.]},
 language={eng},
 type={preprint},
 title={Polish migration and respiratory diseases mainly tuberculosos},
}