R
[Ros03] Laurent Rosaz. The word problem for 1LC congruences is NP-hard. Theoretical Computer Science 306(1-3):245-268. Elsevier, September 2003.
@article{tcs306(1-3)-Ros,
  author =              {Rosaz, Laurent},
  title =               {The word problem for {\(1\mathcal{LC}\)} congruences
                         is {NP}-hard},
  publisher =           {Elsevier},
  journal =             {Theoretical Computer Science},
  volume =              {306},
  number =              {1-3},
  pages =               {245-268},
  year =                {2003},
  month =               sep,
}
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