@misc{Perrin_M._R._Trap_1975,
 author={Perrin, M. R.},
 volume={20},
 number={15},
 copyright={Rights Reserved - Free Access},
 address={Białowieża},
 journal={Acta Theriologica},
 howpublished={online},
 year={1975},
 language={eng ; Sum. ang ; pol.},
 type={Text},
 title={Trap deaths},
 URL={http://rcin.org.pl/Content/10262/PDF/BI002_2613_Cz-40-2_Acta-T20-nr15-167-174_o.pdf},
 keywords={Clethrionomys glareolus, Longworth live trap, Microtus agrestis, mortality, trap deaths, pułapka, śmiertelność, Nornica ruda, Nornik bury},
}