@misc{indiciaec68416eb4b8a,
  title = {A study of gas flow pattern, undercutting and torch modification in variable polarity plasma arc welding},
  author = {Mcclure, John C. and Hou, Haihui Ron},
  year = {1994},
  url = {https://ntrs.nasa.gov/citations/19950011641},
  note = {Source identifier: 19950011641}
}