Quasi-elastic neutron scattering on γ-Fe2O3 nanoparticles F. Gazeau, E. Dubois, M. Hennion, R. Perzynski and Yu. Raikher Europhys. Lett., 40 5 (1997) 575-580 Published online: 01 September 2002 DOI: 10.1209/epl/i1997-00507-2