@misc{indiciaeff5e21e9c81d,
  title = {Large area QNDE inspection for airframe integrity},
  author = {Winfree, William P. and Heyman, Joseph S.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19920009346},
  note = {Source identifier: 19920009346}
}