@misc{indiciae43c066eb7312,
  title = {Multimode instability criterion in optical bistable systems.},
  author = {H Gang and H Haken},
  year = {1989},
  doi = {10.1103/physreva.40.1899},
  url = {https://pubmed.ncbi.nlm.nih.gov/9902347/},
  note = {Source identifier: 9902347}
}