@misc{indiciaeacf10004fccb,
  title = {Modification of Einstein A Coefficient in Dissipative Gas Medium},
  author = {Cao, Chang-Qi and Cao, Hui and Qin, Ke-Cheng},
  year = {1996},
  url = {https://ntrs.nasa.gov/citations/19960025067},
  note = {Source identifier: 19960025067}
}