TY - CPAPER AU - Ervin Lumnitzer TI - APPROACH TO VALUATION OF ACOUSTICAL MATERIAL PROPERTIES T2 - 14th International Multidisciplinary Scientific GeoConference SGEM 2014, Ecology, Environmental Economics, Education, and Legislation, Vol. 14, Book 5, Volume 1 PY - 2014 DO - 10.5593/sgem2014/b51/s20.007 PB - Stef92 Technology ER -