@misc{Andreassen_H._P._Visual_1998,
 author={Andreassen, H. P. and Bjørnbom, E. and Carlsen, R. G. and Gundersen, G. and Gundersen, H.},
 volume={43},
 number={4},
 copyright={Rights Reserved - Free Access},
 address={Białowieża},
 journal={Acta Theriologica},
 howpublished={online},
 year={1998},
 language={eng ; Sum. eng.},
 type={Text},
 title={Visual cues as determinants of perceptual range in root voles Microtus oeconomus},
 URL={http://www.rcin.org.pl/Content/12784/PDF/BI002_2613_Cz-40-2_Acta-T43-nr36-371-378_o.pdf},
 keywords={landscape ecology, Microtus oeconomus, perceptual range, root, searching behaviour, voles, Nornik północny},
}