Intrinsic localisation in the dynamics of a Josephson-junction ladderL. M. Floría, J. L. Marín, P. J. Martínez, F. Falo and S. AubryEurophys. Lett., 36 7 (1996) 539-544DOI: https://doi.org/10.1209/epl/i1996-00266-0