TY - CONF A1 - Kreutzbruck, Marc A1 - Döring, Joachim A1 - Bartusch, Jürgen A1 - Bovtun, Viktor Petrovic A1 - Beck, Uwe T1 - Cellular polypropylene ferroelectret film: Piezoelectric material for non-contact Ultrasonic transducers T2 - WCNDT 2008 T2 - WCNDT 2008 CY - Shanghai, China DA - 2008-10-25 PY - 2008 AN - OPUS4-18171 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -