@article{doi:10.1137/050645427,
    Author = {Boja{\'n}czyk, Miko{\L}aj and Colcombet, Thomas},
    EPrint = {http://dx.doi.org/10.1137/050645427},
    File = {twareg (0) - a - a - z.pdf},
    Journal = {SIAM Journal on Computing},
    Number = {2},
    Pages = {658-701},
    Title = {Tree-Walking Automata Do Not Recognize All Regular Languages},
    URL = {http://dx.doi.org/10.1137/050645427},
    Volume = {38},
    Year = {2008},
    bdsk-url-1 = {http://dx.doi.org/10.1137/050645427},
    date-added = {2017-01-31 07:31:16 +0000},
    date-modified = {2017-01-31 07:31:16 +0000},
    doi = {10.1137/050645427}
}

@article{doi:10.1137/050645427, Author = {Boja{\'n}czyk, Miko{\L}aj and Colcombet, Thomas}, EPrint = {http://dx.doi.org/10.1137/050645427}, File = {twareg (0) - a - a - z.pdf}, Journal = {SIAM Journal on Computing}, Number = {2}, Pages = {658-701}, Title = {Tree-Walking Automata Do Not Recognize All Regular Languages}, URL = {http://dx.doi.org/10.1137/050645427}, Volume = {38}, Year = {2008}, bdsk-url-1 = {http://dx.doi.org/10.1137/050645427}, date-added = {2017-01-31 07:31:16 +0000}, date-modified = {2017-01-31 07:31:16 +0000}, doi = {10.1137/050645427} }