@misc{indiciae39e1e57573f8,
  title = {Active noise control using noise source having adaptive resonant frequency tuning through variable ring loading},
  author = {Pla, Frederic G. and Rajiyah, Harindra and Renshaw, Anthony A. and Hedeen, Robert A.},
  year = {1995},
  url = {https://ntrs.nasa.gov/citations/20080007425},
  note = {Source identifier: 20080007425}
}