@misc{indiciae661e776e2cb8,
  title = {Triaxial ballistocardiogram in a weightless environment.},
  author = {Beischer, D. E. and Hixson, W. C.},
  year = {1966},
  url = {https://ntrs.nasa.gov/citations/19660054425},
  note = {Source identifier: 19660054425}
}