Low- and high-order nonlinear optical characterization of C60-containing media R. A. Ganeev, G. S. Boltaev, R.I. Tugushev, T. Usmanov, M. Baba and H. Kuroda Eur. Phys. J. D, 64 1 (2011) 109-114 Published online: 27 July 2011 DOI: 10.1140/epjd/e2011-20030-7