@misc{indiciaee8d3ef06da1f,
  title = {SMC X-1 variability observed from HEAO 1},
  author = {Gruber, D. E. and Rothschild, R. E.},
  year = {1984},
  url = {https://ntrs.nasa.gov/citations/19840065123},
  note = {Source identifier: 19840065123}
}