Probing the dust formation region in IRC +10216 with the high vibrational states of hydrogen cyanideJ. Cernicharo, M. Agúndez, C. Kahane, M. Guélin, J. R. Goicoechea, N. Marcelino, E. De Beck and L. DecinA&A, 529 (2011) L3DOI: https://doi.org/10.1051/0004-6361/201116717