@misc{Krollmann_Christian_(1866-1944)_Die,
 author={Krollmann, Christian (1866-1944)},
 address={Königsberg (Pr)},
 address={Berlin},
 howpublished={online},
 publisher={Ost-Europa-Verlag},
 language={ger},
 type={broszura},
 title={Die Entstehung der Stadt Königsberg (Pr)},
}