@misc{indiciaea167c3352eba,
  title = {Composition of interstellar grains.},
  author = {D P Gilra},
  year = {1971},
  doi = {10.1038/229237a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/16059178/},
  note = {Source identifier: 16059178}
}