@misc{Guttmann_Allen_Letters,
 author={Guttmann, Allen and Christensen, Karen and Crawford, Scott A. G. M. and Silvennoinen, Martti},
 copyright={Akademia Wychowania Fizycznego w Poznaniu},
 howpublished={online},
 publisher={Akademia Wychowania Fizycznego w Poznaniu},
 language={eng},
 type={artykuł},
 title={Letters to the editor, correspondences: Studies in Physical Culture and Tourism 1999 Vol.6},
}