On the kinematics of massive star forming regions: the case of IRAS 17233–3606 S. Leurini, C. Codella, L. Zapata, M. T. Beltrán, P. Schilke and R. Cesaroni A&A, 530 (2011) A12 Published online: 27 April 2011 DOI: 10.1051/0004-6361/201016190