TY  - RPRT
TI  - Low-frequency absorption using a two-layer system with active control of input impedance.
AU  - Pedro Cobo
AU  - Alejandro Fernández
AU  - Olivier Doutres
PY  - 2003
DO  - 10.1121/1.1629306
UR  - https://pubmed.ncbi.nlm.nih.gov/14714803/
ID  - 14714803
ER  -