@misc{indiciaef76beb0d7069,
  title = {Angular motion of a PAH molecule in interstellar environment},
  author = {Rouan, D. and Leger, Alain and Omont, A. and Giard, Martin},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19910005625},
  note = {Source identifier: 19910005625}
}