@misc{Ożdżeński_W._Stages_1976,
 author={Ożdżeński, W. and Mystkowska, E. T.},
 volume={21},
 number={20},
 copyright={Rights Reserved - Free Access},
 address={Białowieża},
 journal={Acta Theriologica},
 howpublished={online},
 year={1976},
 language={eng ; Sum. ang ; pol.},
 type={Text},
 title={Stages of pregnancy of the bank vole},
 URL={http://rcin.org.pl/ibs/Content/10321/PDF/BI002_2613_Cz-40-2_Acta-T21-nr20-279-286_o.pdf},
 keywords={Clethrionomys glareolus, foetus, pregnancy, reproductive organs, Nornica ruda, ciąża, zarodek, układ rozrodczy},
}