Arcsecond-resolution CO mapping of the yellow hypergiants IRC +10420 and AFGL 2343A. Castro-Carrizo, G. Quintana-Lacaci, V. Bujarrabal, R. Neri and J. AlcoleaA&A, 465 2 (2007) 457-467DOI: https://doi.org/10.1051/0004-6361:20066169