@misc{indiciae504ca56f1ffc,
  title = {Accuracy of an approximate static structural analysis technique based on stiffness matrix eigenmodes},
  author = {Sobieszczanski-Sobieski, J. and Hajela, P.},
  year = {1979},
  url = {https://ntrs.nasa.gov/citations/19790044250},
  note = {Source identifier: 19790044250}
}