Magnetic coherence above the Curie point in ferromagnetic LaSrMnO manganites M. Viret, H. Glättli, C. Fermon, A. M. de Leon-Guevara and A. Revcolevschi Europhys. Lett., 42 3 (1998) 301-306 Published online: 01 September 2002 DOI: 10.1209/epl/i1998-00246-4