@misc{Hewson_R._Couch_1969,
 author={Hewson, R.},
 volume={159},
 copyright={Rights Reserved - Restricted Access},
 address={London},
 journal={Journal of Zoology, Lond.},
 howpublished={online},
 year={1969},
 publisher={Wiley-Blackwell},
 language={eng},
 title={Couch building by otters Lutra lutra},
 type={Text},
 keywords={Lutra lutra, Otters},
}