@misc{Krieg_Hans_(1888-1970)_Die,
 author={Krieg, Hans (1888-1970)},
 howpublished={online},
 publisher={A. W. Kafemann},
 language={ger},
 type={broszura},
 title={Die Imkerei im Weichsellande},
 keywords={pszczelarstwo, historia, 19 w.},
}