TY - CONF A1 - Rücker, Werner A1 - Auersch, Lutz T1 - Insertion loss under sleeper pads in ballast and slab track systems T2 - RIVAS Workshop T2 - RIVAS Workshop CY - Leuven, Belgium DA - 2012-05-22 PY - 2012 AN - OPUS4-27093 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -