@Article{BenGal01,
  author =       "Ben-Amram and Galil",
  title =        "A generalization of a lower-bound technique due to {Fredman} and {Saks}",
  journal =      "Algorithmica",
  volume =       "30",
  number =	 1,
  pages =	 "34--66",
  year =         "2001",
}