Infrared Q-branch anomalies on cooling small OCS (pH2)n clusters from 0.38 K to 0.15 K S. Grebenev, B. G. Sartakov, J. P. Toennies and A. F. Vilesov EPL, 83 6 (2008) 66008 Published online: 12 September 2008 DOI: 10.1209/0295-5075/83/66008