@misc{_Labiau,
 address={[Berlin]},
 howpublished={online},
 publisher={[Königlich-Preußischer Generalstab]},
 language={ger},
 title={Labiau 16},
 type={mapa},
 keywords={Labiawa (obw. kaliningradzki) - okolice, Polessk (obw. kaliningradzki) - okolice},
}