Direct Measurement of the Phase-Coherence Lenght in a GaAs/GaAIAs Square Network 10 janvier 2004 Ferrier, M., Angers, L., Rowe, A.C.H., Gueron, S., Bouchiat, H., Texier, C., Montambaux, G., Mailly, D. Physical Review Letters 93 (2004) 246804-1-4