@misc{indiciae6d1eedbf7fcb,
  title = {Classical phase changes in nonlinear processes and their quantum counterparts.},
  author = {GS Agarwal and S Chaturvedi and K Tara and V Srinivasan},
  year = {1992},
  doi = {10.1103/physreva.45.4904},
  url = {https://pubmed.ncbi.nlm.nih.gov/9907573/},
  note = {Source identifier: 9907573}
}