@Book{Cormen2009,
  author = {Cormen, Thomas H.},
  title  = {Introduction to algorithms},

  year   = {2009},
  number = {},
  url    = {http://www.amazon.de/Introduction-Algorithms-Thomas-H-Cormen/dp/0262033844},

  const  = {\ text}
}
@Article{Bron1974,
  author = {Bron, Coenraad},
  title  = {Merge Sort Algorithm (Remark on Algorithm 426).},
  journal = {Commun. ACM},
  year   = {1974},
  number = {12},
  url    = {http://dblp.uni-trier.de/db/journals/cacm/cacm17.html#Bron74},

  const  = {\ text}
}
@Article{Bron1972,
  author = {Bron, Coenraad},
  title  = {Merge Sort Algorithm [M1] (Algorithm 426).},
  journal = {Commun. ACM},
  year   = {1972},
  number = {5},
  url    = {http://dblp.uni-trier.de/db/journals/cacm/cacm15.html#Bron72},

  const  = {\ text}
}
@Article{Hoare01011962,
  author = {Hoare, C. A. R.},
  title  = {Quicksort},
  journal = {The Computer Journal},
  year   = {1962},
  number = {1},
  url    = {http://comjnl.oxfordjournals.org/content/5/1/10.abstract},
  doi = {10.1093/comjnl/5.1.10},
  const  = {\ text}
}
@Article{Flores1961,
  author = {Flores, Ivan},
  title  = {Analysis of Internal Computer Sorting.},
  journal = {J. ACM},
  year   = {1961},
  number = {1},
  url    = {http://dblp.uni-trier.de/db/journals/jacm/jacm8.html#Flores61},

  const  = {\ text}
}
@Article{Hoare1961,
  author = {Hoare, C. A. R.},
  title  = {Algorithm 64: Quicksort.},
  journal = {Commun. ACM},
  year   = {1961},
  number = {7},
  url    = {http://dblp.uni-trier.de/db/journals/cacm/cacm4.html#Hoare61b},

  const  = {\ text}
}