soulèvement en Haute-Silésie soumise au plébiscite en août et septembre 1920 festungsfront oder-warthe-bogen Grupa Warowna [Schill] ; oraz staniswisko dla km-u za plyta pancerna z garazem dla dziala przeciwpancernego = Werkgruppe "Schill" : MG-Schartenstand und Pak-Unterstellraum / Anna … festungsfront oder-wartha-bogen Grupa Warowna [Scharnhorst] = Werkgruppe "Scharnhorst" / Anna Kedryna, Robert M. Jurga Political prisoners in Poland : an exposure of the persecution of political, racial and religious minorities today in Poland, from documentary sources / published by …