@article{7317,
  author = {Randall Shirts and William Reinhardt},
  title = {Approximate constants of motion for classically chaotic vibrational dynamics: Vague tori, semiclassical quantization, and classical intramolecular energy flow},
  year = {1982},
  journal = {The Journal of Chemical Physics},
  volume = {77},
  pages = {5204},
  month = {Jan-01-1982},
  issn = {00219606},
  doi = {10.1063/1.443697},
}