CO abundance in the nearby globule Barnard 68S. Hotzel, J. Harju, M. Juvela, K. Mattila and L. K. HaikalaA&A, 391 1 (2002) 275-285DOI: https://doi.org/10.1051/0004-6361:20020786
O abundance in the nearby globule Barnard 68O abundance in the nearby globule Barnard 68