@misc{indiciaebf76a4bc261b,
  title = {Friction pull plug welding: top hat plug design},
  author = {Coletta, Edmond R. and Cantrell, Mark A.},
  year = {2002},
  url = {https://ntrs.nasa.gov/citations/20080005006},
  note = {Source identifier: 20080005006}
}