@misc{indiciae929f58f95105,
  title = {Ceramic Rail-Race Ball Bearings},
  author = {Balzer, Mark A. and Mungas, Greg S. and Peters, Gregory H.},
  year = {2010},
  url = {https://ntrs.nasa.gov/citations/20100019595},
  note = {Source identifier: 20100019595}
}