Coherent diffraction of charge-density waves upon electric field S. Ravy, D. le Bolloc'h, J. Dumas, J. Marcus, F. Livet, C. Detlefs, F. Yakhou and L. Paolasini J. Phys. IV France, 131 (2005) 151 Published online: 18 January 2006 DOI: 10.1051/jp4:2005131036