@article{DBLP:journals/jda/StefanoKLZ08,
  author    = {Gabriele Di Stefano and
               Stefan Krause and
               Marco E. L{\"u}bbecke and
               Uwe T. Zimmermann},
  title     = {On minimum k-modal partitions of permutations},
  journal   = {J. Discrete Algorithms},
  volume    = {6},
  number    = {3},
  year      = {2008},
  pages     = {381-392},
  ee        = {http://dx.doi.org/10.1016/j.jda.2008.01.002},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}