@misc{indiciae5bf43cb26041,
  title = {Self-Advancing Step-Tap Drills},
  author = {Pettit, Donald R. and Camarda, Charles J. and Penner, Ronald K. and Franklin, Larry D.},
  year = {2007},
  url = {https://ntrs.nasa.gov/citations/20090040808},
  note = {Source identifier: 20090040808}
}