@misc{indiciae8cb7069c9c1f,
  title = {Low-frequency absorption using a two-layer system with active control of input impedance.},
  author = {Pedro Cobo and Alejandro Fernández and Olivier Doutres},
  year = {2003},
  doi = {10.1121/1.1629306},
  url = {https://pubmed.ncbi.nlm.nih.gov/14714803/},
  note = {Source identifier: 14714803}
}