@misc{indiciae7174845bf9c8,
  title = {Improved diamond coring bits developed for dry and chip-flush drilling},
  author = {Decker, W. E. and Hampe, W. R. and Hampton, W. H. and Simon, A. B.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19710000356},
  note = {Source identifier: 19710000356}
}