  
  
  [1XReferences[0X
  
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  Comput.[15X, [19X29[15X (2000), 5--31.
  
  [[20XHey99[15X]  [16XHeyworth,  A.[15X,  [17XApplications  of Rewriting Systems and Groebner
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  [[20XLin91[15X]  [16XLinton,  S.[15X,  [17XDouble coset enumeration[15X, [18XJ. Symbolic Comput.[15X, [19X12[15X
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