@misc{indiciae1e8a63bd574f,
  title = {Trace element abundance determinations by Synchrotron X Ray Fluorescence (SXRF) on returned comet nucleus mineral grains},
  author = {Flynn, G. J. and Sutton, S. R.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19900007303},
  note = {Source identifier: 19900007303}
}