@Inproceedings{EPTCS320.2,
  author    = {Clemente, Lorenzo},
  year      = {2020},
  title     = {On the Complexity of the Universality and Inclusion Problems for Unambiguous Context-Free Grammars},
  editor    = {Fribourg, Laurent and Heizmann, Matthias},
  booktitle = {{\rm Proceedings 8th  International Workshop on}
               Verification and Program Transformation {\rm and 7th Workshop on} Horn Clauses for Verification and Synthesis,
               {\rm Dublin, Ireland, 25-26th April 2020}},
  series    = {Electronic Proceedings in Theoretical Computer Science},
  volume    = {320},
  publisher = {Open Publishing Association},
  pages     = {29-43},
  doi       = {10.4204/EPTCS.320.2},
}