@misc{_Lengwethen,
 address={[Berlin]},
 howpublished={online},
 publisher={[Königlich-Preußischer Generalstab]},
 language={ger},
 type={mapa},
 title={Lengwethen 18},
 keywords={Uljanowo (obw. kaliningradzki) - okolice, Żilino (obw. kaliningradzki) - okolice},
}