@INPROCEEDINGS{prs12,
  author = {G. Puppis and C. Riveros and S. Staworko},
  title = {Bounded Reparability for Regular Tree Languages},
  booktitle = {Proceedings of the 15th Internation Conference on Database Theory (ICDT)},
  pages = {155-168},
  year = {2012},
  publisher = {ACM}
}