A new method to identify subclasses among AGB stars using Gaia and 2MASS photometry T. Lebzelter, N. Mowlavi, P. Marigo, G. Pastorelli, M. Trabucchi, P. R. Wood and I. Lecoeur-Taïbi A&A, 616 (2018) L13 Published online: 24 August 2018 DOI: 10.1051/0004-6361/201833615