@article{Otto199843,
    Author = {Otto, Friedrich},
    File = {Some undecidability results concerning the property of preserving regularity - Otto (0) (0) - a - a - p.pdf},
    ISSN = {0304-3975},
    Journal = {Theoretical Computer Science},
    Keywords = {preservation of regularity and rewriting systems},
    Number = {1},
    Pages = {43 - 72},
    Title = {Some undecidability results concerning the property of preserving regularity},
    URL = {http://www.sciencedirect.com/science/article/pii/S0304397598000553},
    Volume = {207},
    Year = {1998},
    bdsk-url-1 = {http://www.sciencedirect.com/science/article/pii/S0304397598000553},
    bdsk-url-2 = {http://dx.doi.org/10.1016/S0304-3975(98)00055-3},
    date-added = {2012-10-02 16:37:42 +0000},
    date-modified = {2012-10-26 09:24:26 +0000},
    doi = {10.1016/S0304-3975(98)00055-3}
}

@article{Otto199843, Author = {Otto, Friedrich}, File = {Some undecidability results concerning the property of preserving regularity - Otto (0) (0) - a - a - p.pdf}, ISSN = {0304-3975}, Journal = {Theoretical Computer Science}, Keywords = {preservation of regularity and rewriting systems}, Number = {1}, Pages = {43 - 72}, Title = {Some undecidability results concerning the property of preserving regularity}, URL = {http://www.sciencedirect.com/science/article/pii/S0304397598000553}, Volume = {207}, Year = {1998}, bdsk-url-1 = {http://www.sciencedirect.com/science/article/pii/S0304397598000553}, bdsk-url-2 = {http://dx.doi.org/10.1016/S0304-3975(98)00055-3}, date-added = {2012-10-02 16:37:42 +0000}, date-modified = {2012-10-26 09:24:26 +0000}, doi = {10.1016/S0304-3975(98)00055-3} }