TY - CONF A1 - Malitte, Hans-Joachim A1 - Redmer, Bernhard A1 - Ewert, Uwe A1 - Zscherpel, Uwe T1 - BAM Reference films for calibration of transmission densitometers T2 - 9 th European Conference on NDT T2 - 9 th European Conference on NDT CY - Berlin, Germany DA - 2006-09-25 PY - 2006 AN - OPUS4-13081 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -