TY - CONF A1 - Algernon, Daniel A1 - Wiggenhauser, Herbert T1 - Experimental investigation of the acoustic wave propagation in concrete structures after impact excitation T2 - IIIrd Workshop of "NDT in Progress" T2 - IIIrd Workshop of "NDT in Progress" CY - Prague, Czech Republic DA - 2005-10-10 PY - 2005 AN - OPUS4-11415 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -