@misc{indiciae949f2a320071,
  title = {A finite element model with nonviscous damping},
  author = {Roussos, L. A. and Hyer, M. W. and Thornton, E. A.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19810045029},
  note = {Source identifier: 19810045029}
}