@misc{indiciae5a4b1e3e905e,
  title = {Method and apparatus for evaluating multilayer objects for imperfections},
  author = {Heyman, Joseph S. and Abedin, M. N.},
  year = {1992},
  url = {https://ntrs.nasa.gov/citations/19930003016},
  note = {Source identifier: 19930003016}
}