@misc{indiciae8b4785cd24a8,
  title = {Nonlinear stress waves in a perfectly flexible string},
  author = {Fan, D.-N. and Mcgarvey, J. F.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19770052159},
  note = {Source identifier: 19770052159}
}