Martinez Maestro, L, Jaque, D, Escudero, E, Martin Rodriguez, E, Capobianco, JA, Vetrone, F, Juarranz de la Fuente, A, Sanz-Rodriguez, F, Iglesias-de la Cruz, MC, Jacinto, C, Rocha, U, Garcia Sole, J, "Fluorescent nano-particles for multi-photon thermal sensing", Journal of Luminescence, 2011