@misc{Bujalska_G._Productivity_1968,
 author={Bujalska, G. and Andrzejewski, R. and Petrusewicz, K.},
 volume={13},
 number={24},
 copyright={Rights Reserved - Free Access},
 address={Białowieża},
 journal={Acta Theriologica},
 howpublished={online},
 year={1968},
 language={eng ; sum . eng ; pol},
 type={Text},
 title={Productivity investigation of an island population of Clethrionomys glareolus (Schreber, 1780). II. Natality},
 URL={http://rcin.org.pl/Content/9663/PDF/BI002_2613_Cz-40-2_Acta-T13-nr24-415-425_o.pdf},
 keywords={Clethrionomys glareolus, International Biological Program, island population, Bełdany Lake, natality, population, productivity},
}