@article{FredmanSST86,
  author    = {Michael L. Fredman and
               Robert Sedgewick and
               Daniel Dominic Sleator and
               Robert Endre Tarjan},
  title     = {The Pairing Heap: {A} New Form of Self-Adjusting Heap},
  journal   = {Algorithmica},
  volume    = {1},
  number    = {1},
  pages     = {111--129},
  year      = {1986}
}

@book{Okasaki,author="Chris Okasaki",title="Purely Functional Data Structures",
publisher="Cambridge University Press",year=1998}


