@misc{Bartels_Petrus_(1832–1907)_Johannes,
 author={Bartels, Petrus (1832–1907)},
 howpublished={online},
 publisher={Fridrichs},
 language={ger},
 type={monografie},
 type={biografie},
 title={Johannes a Lasco},
 keywords={Jan Łaski (1499-1560), reformacja 16w.},
}