@misc{indiciae55cecf268dda,
  title = {GRAAL - A graph algorithmic language},
  author = {Basili, V. R. and Mesztenyi, C. K. and Rheinboldt, W. C.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19710023018},
  note = {Source identifier: 19710023018}
}