  
  
  [1XReferences[101X
  
  [[20XFSST86[120X]  [16XFredman,  M.  L., Sedgewick, R., Sleator, D. D. and Tarjan, R. E.[116X,
  [17XThe  pairing  heap:  A  new  form of self-adjusting heap[117X, [18XAlgorithmica[118X, [19X1[119X, 1
  (1986), 111--129.
  
  
  
  [32X
