Experimental evidence for molecular ultrafast dissociation in O2 clusters T. Rander, M. Lundwall, A. Lindblad, G. Öhrwall, M. Tchaplyguine, S. Svensson and O. Björneholm Eur. Phys. J. D, 42 2 (2007) 253-257 Published online: 09 February 2007 DOI: 10.1140/epjd/e2007-00023-y