Regular Languages of Nested Words: Fixed Points, Automata, and Synchronization. Arenas, M., Barcelo, P., & Libkin, L. In Automata, Languages and Programming, 34th International Colloquium, ICALP 2007, Wroclaw, Poland, July 9-13, 2007, Proceedings, pages 888-900, 2007.
Regular Languages of Nested Words: Fixed Points, Automata, and Synchronization [link]Link  bibtex   
@inproceedings{DBLP:conf/icalp/ArenasBL07,
  author    = {Marcelo Arenas and
               Pablo Barcelo and
               Leonid Libkin},
  title     = {Regular Languages of Nested Words: Fixed Points, Automata,
               and Synchronization},
  booktitle = {Automata, Languages and Programming, 34th International
               Colloquium, ICALP 2007, Wroclaw, Poland, July 9-13, 2007,
               Proceedings},
  year      = {2007},
  pages     = {888-900},
  ee        = {http://dx.doi.org/10.1007/978-3-540-73420-8_76},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

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