@article{1364146,
      note = {Includes index.},
      author = {Rozenberg, G., and Salomaa,  A.,},
      url = {http://library.usi.edu/record/1364146},
      title = {Handbook of formal languages., Volume 3,: Beyond words /},
      recid = {1364146},
      pages = {1 online resource (635 pages)},
}