@article{JALC-2020-081,
  author  = {Michal Hospod{\'{a}}r and Galina Jir{\'{a}}skov{\'{a}} and Giovanni Pighizzini},
  title   = {Preface},
  journal = {Journal of Automata, Languages and Combinatorics},
  volume  = {25},
  number  = {2--3},
  pages   = {81--82},
  year    = {2020},
  url     = {https://doi.org/10.25596/jalc-2020-081},
  doi     = {10.25596/jalc-2020-081}
}