@misc{indiciae43e4d0bc1dc8,
  title = {Chemical Evolution of Protostellar Matter},
  author = {Langer, William D. and vanDishoeck, Ewine F. and Bergin, Edwin A. and Blake, Geoffrey A. and Tielens, Alexander G. G. M. and Velusamy, Thangasamy and Whittet, Douglas C. B.},
  year = {2000},
  url = {https://ntrs.nasa.gov/citations/20000057044},
  note = {Source identifier: 20000057044}
}