@misc{Dorr_Robert_Der,
 author={Dorr, Robert},
 howpublished={online},
 publisher={A. W. Kafemann},
 language={ger},
 title={Der Burgwall bei Lenzen},
 type={książka},
 keywords={archeologia, Dorr, Robert (1835-1919), Łęcze - archeologia - badania},
}