@misc{Konarski_Jan_Different,
 author={Konarski, Jan and Matuszyński, Maciej and Strzelczyk, Ryszard},
 copyright={Akademia Wychowania Fizycznego w Poznaniu},
 howpublished={online},
 publisher={Akademia Wychowania Fizycznego w Poznaniu},
 language={eng},
 type={artykuł},
 title={Different team defense tactics and heart rate during a field hockey match},
}