@misc{indiciae1a23aa23aaff,
  title = {Time-dependent backgrounds in two-dimensional string theory and the S-matrix generating functional.},
  author = {J Lee},
  year = {1994},
  doi = {10.1103/physrevd.49.2957},
  url = {https://pubmed.ncbi.nlm.nih.gov/10017288/},
  note = {Source identifier: 10017288}
}