@misc{Dr._E._Mertens_&_Cie_(Berlin)_Die,
 author={Dr. E. Mertens & Cie (Berlin)},
 address={Warmbrunn},
 howpublished={online},
 publisher={Verlag Max Leipelt},
 language={ger},
 title={Die Kirche Wang},
 type={fotografia},
}