@misc{Tupikova_N._V._A_1968,
 author={Tupikova, N. V. and Sidorova, G. A. and Konovalova, E. A.},
 volume={13},
 number={8},
 copyright={Rights Reserved - Free Access},
 address={Białowieża},
 journal={Acta Theriologica},
 howpublished={online},
 year={1968},
 language={eng ; sum . eng ; pol},
 type={Text},
 title={A method of age determination in Clethrionomys},
 URL={http://rcin.org.pl/ibs/Content/9687/PDF/BI002_2613_Cz-40-2_Acta-T13-nr8-99-115_o.pdf},
 keywords={age determination, Clethrionomys glareolus, Clethrionomys rutilus},
}