^ 2.02.12.22.32.42.5De Beck, E.; Decin, L.; De Koter, A.; Justtanont, K.; Verhoelst, T.; Kemper, F.; Menten, K. M. Probing the mass-loss history of AGB and red supergiant stars from CO rotational line profiles. II. CO line survey of evolved stars: Derivation of mass-loss rate formulae. Astronomy and Astrophysics. 2010, 523: A18. Bibcode:2010A&A...523A..18D. arXiv:1008.1083. doi:10.1051/0004-6361/200913771.