@misc{indiciae7fe30eace26d,
  title = {Detection and location of metallic objects imbedded in nonmetallic structures},
  author = {Brown, R. L. and Neuschaefer, R. W.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19680000183},
  note = {Source identifier: 19680000183}
}