@article{JALC-2022-079,
  author  = {P\'eter Batty\'anyi and Tam\'as Mih\'alyde\'ak and Gy\"orgy Vaszil},
  title   = {Rough-Set-Like Approximation Spaces for Formal Languages},
  journal = {Journal of Automata, Languages and Combinatorics},
  volume  = {27},
  number  = {1--3},
  pages   = {79--90},
  year    = {2022},
  url     = {https://doi.org/10.25596/jalc-2022-079},
  doi     = {10.25596/jalc-2022-079}
}