@misc{indiciae36c94290ecee,
  title = {Application of symbolic/numeric matrix solution techniques to the NASTRAN program},
  author = {Buturla, E. M. and Burroughs, S. H.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19780004514},
  note = {Source identifier: 19780004514}
}