@Inproceedings{EPTCS31.13,
  author    = {Holzer, Markus and Jakobi, Sebastian and Kutrib, Martin},
  year      = {2010},
  title     = {The Magic Number Problem for Subregular Language Families},
  editor    = {McQuillan, Ian and Pighizzini, Giovanni},
  booktitle = {{\rm Proceedings Twelfth Annual Workshop on}
               Descriptional Complexity of Formal Systems,
               {\rm Saskatoon, Canada, 8-10th August 2010}},
  series    = {Electronic Proceedings in Theoretical Computer Science},
  volume    = {31},
  publisher = {Open Publishing Association},
  pages     = {110-119},
  doi       = {10.4204/EPTCS.31.13},
}