@misc{Wolff_R._J._Solitary_1981,
 author={Wolff, R. J.},
 volume={195},
 copyright={Prawa zastrzeżone - dostęp ograniczony},
 journal={Journal of Zoology, Lond.},
 address={London},
 howpublished={online},
 year={1981},
 publisher={Wiley-Blackwell},
 language={eng},
 type={Tekst},
 title={Solitary and social play in wild Mus musculus (Mammalia)},
 keywords={Mammalia, Mus musculus, Play, Social, Social play, Solitary},
}