@techreport{Visser97-CC,
  title = {Character Classes},
  author = {Eelco Visser},
  year = {1997},
  month = {August},
  tags = {syntax definition, SDF, term rewriting, character class, graph-rewriting, algebraic specification,  algebra, rewriting, ASF+SDF},
  researchr = {https://researchr.org/publication/Visser97-CC},
  cites = {0},
  citedby = {0},
  institution = {Programming Research Group, University of Amsterdam},
  number = {P9708},
}