Hot HCN around young massive stars at 0.1′′ resolution R. Rolffs, P. Schilke, F. Wyrowski, C. Dullemond, K. M. Menten, S. Thorwirth and A. Belloche A&A, 529 (2011) A76 Published online: 06 April 2011 DOI: 10.1051/0004-6361/201116544