@misc{indiciae68da9510c0e2,
  title = {Efficient reanalysis of structures by a direct modification method},
  author = {Raibstein, A. I. and Kalev, I. and Pipano, A.},
  year = {1976},
  url = {https://ntrs.nasa.gov/citations/19770013544},
  note = {Source identifier: 19770013544}
}