@misc{Koshkina_T._V._Ecologic_1967,
 author={Koshkina, T. V.},
 volume={12},
 number={11},
 copyright={Rights Reserved - Free Access},
 address={Białowieża},
 journal={Acta Theriologica},
 howpublished={online},
 year={1967},
 language={rus ; sum . eng ; pol},
 type={Text},
 title={Ecologic differentiation of species; the vole as an example},
 URL={http://rcin.org.pl/Content/9508/PDF/BI002_2613_Cz-40-2_Acta-T12-nr11-135-163_o.pdf},
 keywords={Clethrionomys rutilus salairicus, density, ecologic differentiation, reproduction, Salair Ridge, populations},
}