@misc{_Spezial_[post,
 editor={Verlag Julius Simonsen},
 copyright={Public Domain},
 address={Oldenburg i. Holstein},
 howpublished={online},
 year={[post 1900]},
 publisher={Verlag Julius Simonsen},
 language={ger},
 title={Spezial Wanderkarte von den Inseln Usedom und Wollin},
 keywords={road maps, tourist maps, maps on postcards, Usedom Island, Wolin Island},
}