@misc{Bereziński_J._Czesk._1961,
 author={Bereziński, J.},
 copyright={Rights Reserved - Restricted Access},
 howpublished={online},
 year={1961},
 language={pol},
 title={Czesk. Sytuacja},
 keywords={archaeology, archaeological site, stronghold, castle (Czersk, Poland), geodesy, hipsometry, Czersk (Poland), Masovia (Poland ; region)},
}