@article{Sauval:1898,
      author        = "Sauval, A. J. and  Farrenq, R. and  Guelachvili, G. and 
                       Grevesse, N. and  Farmer, C. B. and  Norton, R. H.",
      title         = "{On the accuracy of CO line positions for high resolution
                       IR stellar spectroscopy}",
      year          = "1992",
}