@misc{indiciaeecb023affc05,
  title = {Active balance system and vibration balanced machine},
  author = {Qiu, Songgang and Augenblick, John E. and Peterson, Allen A. and White, Maurice A.},
  year = {2005},
  url = {https://ntrs.nasa.gov/citations/20080005059},
  note = {Source identifier: 20080005059}
}