TY - CONF A1 - Algernon, Daniel A1 - Wiggenhauser, Herbert T1 - Impact-echo signal processing T2 - 2006 NDE Conference on Civil Engineering T2 - 2006 NDE Conference on Civil Engineering CY - St. Louis, MO, USA DA - 2006-08-14 PY - 2006 AN - OPUS4-14072 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -