Mass Outflow from Red Giant Stars in M13, M15, and M92DOI: info:10.1088/0004-6256/138/2/615v. 138615–624
Mészáros, Sz, Avrett, E. H., and Dupree, A. K. 2009. "Mass Outflow from Red Giant Stars in M13, M15, and M92." The Astronomical Journal, 138 615–624. https://doi.org/10.1088/0004-6256/138/2/615.