@misc{Fedyk_A._Taxonomic_1971,
 author={Fedyk, A. and Ruprecht, A. L.},
 volume={16},
 number={25},
 copyright={Rights Reserved - Free Access},
 address={Białowieża},
 journal={Acta Theriologica},
 howpublished={online},
 year={1971},
 language={eng},
 type={Text},
 title={Taxonomic value of M1 measurements in Microtus agrestis (Linnaeus, 1761) and Microtus arvalis (Pallas, 1779)},
 URL={http://rcin.org.pl/ibs/Content/16659/PDF/BI002_2613_Cz-40-2_Acta-T16-nr25-408-412_o.pdf},
 keywords={first lower molar, Microtus agrestis, Microtus arvalis, Nornik bury, Nornik zwyczajny},
}