@misc{indiciae8518ea06fbde,
  title = {Friction pull plug welding: dual chamfered plate hole},
  author = {Coletta, Edmond R. and Cantrell, Mark A.},
  year = {2001},
  url = {https://ntrs.nasa.gov/citations/20080004509},
  note = {Source identifier: 20080004509}
}