@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}, title={Productivity investigation of an island population of Clethrionomys glareolus (Schreber, 1780). II. Natality}, type={Text}, 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}, }