@misc{Ruiz-Olmo_J._Observations_1997,
 author={Ruiz-Olmo, J. and Gosálbez, J.},
 volume={42},
 number={3},
 copyright={Rights Reserved - Free Access},
 address={Białowieża},
 journal={Acta Theriologica},
 howpublished={online},
 year={1997},
 language={eng ; Sum. eng.},
 type={Text},
 title={Observations on the sprainting behaviour of the otter Lutra lutra in the NE Spain},
 URL={http://rcin.org.pl/Content/12693/PDF/BI002_2613_Cz-40-2_Acta-T42-nr25-259-270_o.pdf},
 keywords={behaviour, breeding, Lutra lutra, observations, Spain, spraints, wydra},
}