**Chapter 6**

*Waste in Textile and Leather Sectors*

2017. p. 02030

July 2019

[49] Drabek P. Comparison of two internationally recognized methods for determining the sound absorption coefficient. In: MATEC Web of Conferences (CSCC 2017). Vol. 125;

[50] Piana EA, Roozen NB, Scrosati C. Impedance tube measurements on the denorms round Robin test material samples. In: 26th International Congress on Sound and Vibration; Montreal; 7-11

**104**
