@misc{indiciaece4ca501f88a,
  title = {Method and Apparatus for Evaluating Multilayer Objects for Imperfections},
  author = {Heyman, Joseph S. and Abedin, Nurul and Sun, Kuen J.},
  year = {1999},
  url = {https://ntrs.nasa.gov/citations/20000030738},
  note = {Source identifier: 20000030738}
}