@misc{Behrend_Paul_Nikolaus,
 author={Behrend, Paul},
 address={Danzig},
 howpublished={online},
 publisher={A. W. Kafemann},
 language={ger},
 type={artykuł},
 title={Nikolaus Koppernikus, unserer Heimatprovinz berühmtester Sohn},
}