@misc{indiciae91ac3c359bab,
  title = {A color gradient in the soft X-ray diffuse background},
  author = {Snowden, S. L. and Schmitt, J. H. M. M. and Edwards, B. C.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19910031840},
  note = {Source identifier: 19910031840}
}