@misc{_Population,,
 howpublished={online},
 publisher={Statistical Office in Bydgoszcz},
 language={eng},
 language={pol},
 type={e-periodical},
 title={Population, Vital Statistics and Migration in Kujawsko-Pomorskie Voivodship in 2011-2012},
 keywords={population, migration, kujawsko-pomorskie voivodship},
}