@misc{indiciae6eaf5166bc27,
  title = {Optically pumped resonance magnetometer for determining vectoral components in a spatial coordinate system Patent},
  author = {Rempel, R. C. and Ruddock, K. A.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19710010953},
  note = {Source identifier: 19710010953}
}