@article{MulanskyAhnertPikovskijetal.2011,
  author    = {Mario Mulansky and Karsten Ahnert and Arkadij Pikovskij and Dima L. Shepelyansky},
  title     = {Strong and weak chaos in weakly nonintegrable many-body hamiltonian systems},
  journal   = {Journal of statistical physics},
  volume    = {145},
  number    = {5},
  pages     = {1256 -- 1274},
  doi       = {10.1007/s10955-011-0335-3},
  year      = {2011},
}