A positive pumping condition for regular sets

Aldo de Luca, Stefano Varricchio. A positive pumping condition for regular sets. Bulletin of the EATCS, 39:171-174, 1989.

@article{LucaV89,
  title = {A positive pumping condition for regular sets},
  author = {Aldo de Luca and Stefano Varricchio},
  year = {1989},
  researchr = {https://researchr.org/publication/LucaV89},
  cites = {0},
  citedby = {0},
  journal = {Bulletin of the EATCS},
  volume = {39},
  pages = {171-174},
}