@misc{indiciae5ac45d7700f8,
  title = {System remotely inspects, measures, and records internal irregularities in piping},
  author = {Burry, F. H. and Cunningham, J. Y. and Heisman, R. M. and Iceland, W. F. and Norwood, L. B.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19680000149},
  note = {Source identifier: 19680000149}
}