Ammonia observations in the LBV nebula G79.29+0.46 - Discovery of a cold ring and some warm spotsJ. R. Rizzo, Aina Palau, F. Jiménez-Esteban and C. HenkelA&A, 564 (2014) A21DOI: https://doi.org/10.1051/0004-6361/201323170
