Direct evidence of lattice-relaxed charge transfer exciton stringsE. Collet, M. H. Lemée-Cailleau, M. Buron-Le Cointe, H. Cailleau, S. Ravy, T. Luty, J. F. Bérar, P. Czarnecki and N. KarlEurophys. Lett., 57 1 (2002) 67-73DOI: https://doi.org/10.1209/epl/i2002-00542-5