TY - JOUR A1 - Xia, Zhongfu A1 - Gerhard, Reimund A1 - Künstler, Wolfgang A1 - Wedel, Armin A1 - Danz, Rudi T1 - High surface-charge stability of porous polytetrafluoroethylene electret films at room and elvated temperatures Y1 - 1999 UR - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/21217 ER -