@misc{indiciae7a1e2fe9d076,
  title = {Adjoint variational methods in nonconservative stability problems.},
  author = {Prasad, S. N. and Herrmann, G.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19720030780},
  note = {Source identifier: 19720030780}
}