@article{lmcs:725,
    title      = {Definability of linear equation systems over groups and rings},
    author     = {Anuj Dawar and Eryk Kopczynski and Bjarki Holm and Erich Grädel and Wied Pakusa},
    url        = {https://lmcs.episciences.org/725},
    doi        = {10.2168/LMCS-9(4:12)2013},
    journal    = {Logical Methods in Computer Science},
    issn       = {1860-5974},
    volume     = {Volume 9, Issue 4},
    eid        = 12,
    year       = {2013},
    month      = {Nov},
    keywords   = {Computer Science - Logic in Computer Science, Computer Science - Computational Complexity},
}