Gas infall and possible circumstellar rotation in R Leonis J. P. Fonfría, M. Santander-García, J. Cernicharo, L. Velilla-Prieto, M. Agúndez, N. Marcelino and G. Quintana-Lacaci A&A, 622 (2019) L14 Published online: 19 February 2019 DOI: 10.1051/0004-6361/201834840