TY - GEN A1 - Helmerich, Rosemarie T1 - Reinforcement corrosion detection with ultrasonic echo before cracking T2 - Danube Adria Symposium T2 - Danube Adria Symposium CY - Stary Smokovec, Slowakei DA - 2015-09-21 PY - 2015 UR - https://opus4.kobv.de/opus4-bam/frontdoor/index/index/docId/34450 AN - OPUS4-34450 AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany