@misc{indiciae6a544599ccd8,
  title = {Nonlinear transient responses of structures by the spatial finite-element method.},
  author = {Wu, R. W.-H. and Witmer, E. A.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19730051507},
  note = {Source identifier: 19730051507}
}