@article{lmcs:3161,
    title      = {A survey on difference hierarchies of regular languages},
    author     = {Olivier Carton and Dominique Perrin and Jean-Éric Pin},
    url        = {https://lmcs.episciences.org/3161},
    doi        = {10.23638/LMCS-14(1:24)2018},
    journal    = {Logical Methods in Computer Science},
    issn       = {1860-5974},
    volume     = {Volume 14, Issue 1},
    eid        = 25,
    year       = {2018},
    month      = {Mar},
    keywords   = {Computer Science - Formal Languages and Automata Theory, 68Q70, 68Q45, 20M35},
}