@misc{Folk_G._E._Jr._Initial_1970,
 author={Folk, G. E., Jr. and Folk, M. A. and Kreuzer, F.},
 volume={15},
 number={24},
 copyright={Rights Reserved - Free Access},
 journal={Acta Theriologica},
 address={Białowieża},
 howpublished={online},
 year={1970},
 language={eng ; Sum. ang ; pol.},
 title={Initial stages of hibernation: is cold acclimatization necessary},
 type={Text},
 URL={http://rcin.org.pl/Content/11387/PDF/BI002_2613_Cz-40-2_Acta-T15-nr25-373-380_o.pdf},
 keywords={cold acclimatization, hibernation, initial stages, hibernacja, aklimatyzacja},
}