@misc{Luther_Martin_Vier,
 author={Luther, Martin},
 howpublished={online},
 publisher={durch Nicolaum Widemar},
 language={ger},
 title={Vier schone Sermon durch den wirdigen herrn Doctorem Martinum Luther/ zu Born gepredigt ...},
 type={stary druk},
 keywords={Luter, Marcin (1483-1546), kazania kościelne - 16 w., druk teologiczny - 16 w., teologia protestancka, Widemar, Nikolaus},
}