@misc{_Kreis-Blatt, howpublished={online}, publisher={Merzbach, Ludwik}, language={ger}, title={Kreis-Blatt des Kreises Posen-Ost 1918.01.26 Jg.30 Nr4}, type={gazeta}, keywords={Kreis Posen-Ost, Posen-Ost, powiat poznaƄski wschodni}, }