1. ISO 140. Acoustics—measurement of sound insulation in buildings and of building elements: part 3: laboratory measurements of airborne sound insulation of building elements. 1991.
2. ASTM E90-75. Standard method for laboratory measurement of airborne sound transmission loss of building partitions. American Standard for Testing Materials.
3. The measurement of sound insulation of acoustic louvres by an impulse method;Viveiros;Applied Acoustics,2002
4. Sound insulation of open screens;Lyons;Journal of Building Acoustics,1997
5. Guide Test Procedure for Acoustic Louvres, HEVAC Association Acoustic Group, Issue 1.