TY - JOUR A1 - Helmerich, Rosemarie A1 - Niederleithinger, Ernst A1 - Wiggenhauser, Herbert T1 - Toolbox with Nondestructive Testing Methods for Condition Assessment of Railway Bridges T2 - Transportation research record PB - National Research Council CY - Washington, DC KW - Non-destructive testing KW - Automated scanning KW - Condition assessment KW - Bridge assessment KW - Ultrasonicecho KW - Impulse radar KW - Impact echo PY - 2006 UR - https://opus4.kobv.de/opus4-bam/frontdoor/index/index/docId/14293 AN - OPUS4-14293 SN - 0361-1981 IS - 1943 SP - 65 EP - 73 AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany