@misc{indiciae935481823085,
  title = {Definitions and procedures employed in the GERT exclusive-or program},
  author = {Ishmael, P. C. and Pritsker, A. A. B.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19680023665},
  note = {Source identifier: 19680023665}
}