@misc{_Heimat-Kalender,
 howpublished={online},
 publisher={A. Jaschke Nacht. G.M.b.H},
 language={ger},
 type={kalendarz},
 title={Heimat-Kalender des Kreises Rosenberg OS, 1927},
 keywords={kalendarze, Olesno, Rosenberg},
}