@misc{indiciaebfc93b22664c,
  title = {Recommendations for experimental work on sandwich construction},
  author = {Smith, G. W. and Spier, E. E. and Sullins, R. T.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19690029952},
  note = {Source identifier: 19690029952}
}