@misc{indiciaee4a112b11f76,
  title = {Spectral evolution of a long X-ray burst},
  author = {Swank, J. H. and Becker, R. H. and Boldt, E. A. and Holt, S. S. and Pravdo, S. H. and Serlemitsos, P. J.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19770043295},
  note = {Source identifier: 19770043295}
}