TY - JOUR A1 - Gerhard, Reimund A1 - Künstler, Wolfgang A1 - Eberle, G. A1 - Eisenmenger, E. A1 - Yang, G. M. T1 - High space densities in the bulk of fluoropolymer elctrets detected with piezoelectrically generated pressure steps Y1 - 1998 UR - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/22793 ER -