@misc{Eberhardt_Piotr_(1935–2020)_Problematyka_1997,
 author={Eberhardt, Piotr (1935–2020)},
 copyright={Rights Reserved - Free Access},
 address={Warszawa},
 journal={Zeszyty Instytutu Geografii i Przestrzennego Zagospodarowania PAN},
 howpublished={online},
 year={1997},
 publisher={IGiPZ PAN},
 language={pol},
 language={eng},
 title={Problematyka narodowościowa Estonii = The ethnic problems in Estonia},
 type={Text},
 URL={http://www.rcin.org.pl/igipz/Content/34409/WA51_44753_r1997-nr47_Zeszyty-IGiPZ.pdf},
 keywords={population, ethnic structure, national minorities, Estonia},
}