@misc{indiciae7e6cc698df6b,
  title = {Superbubbles},
  author = {Gull, T. R. and Bruweiler, F. C. and Kafatos, M. and Sofia, S.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19810017433},
  note = {Source identifier: 19810017433}
}