@misc{Markov_G._A_1972,
 author={Markov, G. and Bujalska, G. and Christov, L.},
 volume={17},
 number={25},
 copyright={Rights Reserved - Free Access},
 address={Białowieża},
 journal={Acta Theriologica},
 howpublished={online},
 year={1972},
 language={eng ; Sum. ang ; pol.},
 type={Text},
 title={A population of Clethrionomys glareolus pirinus on the Vitosha Mountain, Bulgaria. II. Natality},
 URL={http://rcin.org.pl/ibs/Content/10116/PDF/BI002_2613_Cz-40-2_Acta-T17-nr25-336-342_o.pdf},
 keywords={Clethrionomys glareolus pirinus, natality, population, POPULACJA ZAMKNIĘTA, rozrodczość, Bulgaria},
}