@misc{indiciaeeea3fecfd972,
  title = {Automated multi-level substructuring for Sperry's version of NASTRAN},
  author = {Chan, G. C. and Schmitz, R. P.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19780004510},
  note = {Source identifier: 19780004510}
}