@misc{indiciaeab5ee7215684,
  title = {Chemical abundances in molecular clouds},
  author = {Irvine, W. M. and Goldsmith, P. F. and Hjalmarson, A.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19880027295},
  note = {Source identifier: 19880027295}
}