@misc{indiciaef2a4b9228816,
  title = {Computer program reduces calculation time of normal response functions},
  author = {Alexander, M. J. and Rothman, D. and Zimmerman, J. M.},
  year = {1967},
  url = {https://ntrs.nasa.gov/citations/19670000108},
  note = {Source identifier: 19670000108}
}