@misc{indiciae38142914214d,
  title = {Ultrasonic metamaterials with negative modulus.},
  author = {Nicholas Fang and Dongjuan Xi and Jianyi Xu and Muralidhar Ambati and Werayut Srituravanich and Cheng Sun and Xiang Zhang},
  year = {2006},
  doi = {10.1038/nmat1644},
  url = {https://pubmed.ncbi.nlm.nih.gov/16648856/},
  note = {Source identifier: 16648856}
}