Control of the Size of Cobalt Ferrite Nanoparticles : Synthesis and Properties M.P. Pileni, N. Moumen, J.F. Hochepied, P. Bonville et P. Veillet J. Phys. IV France, 07 C1 (1997) C1-505-C1-508 DOI: 10.1051/jp4:19971207