@misc{Beron_P._Le_1963,
 author={Beron, P.},
 volume={7},
 number={4},
 copyright={Rights Reserved - Free Access},
 address={Białowieża},
 journal={Acta Theriologica},
 howpublished={online},
 year={1963},
 language={fre ; sum . fre ; pol},
 type={Text},
 title={Le baguage des Chauves - souris en Bulgarie de 1940 á 1961; Obrączkowanie nietoperzy w Bułgarii w latach 1940-1961},
 URL={http://www.rcin.org.pl/Content/9242/PDF/BI002_2613_Cz-40-2_Acta-T7-nr4-34-49_o.pdf},
 keywords={bats ringing, biology, Chiroptera, migration distance},
}