@article{Benois1986281,
    Author = {Benois, Mich{\`e}le and Sakarovitch, Jacques},
    File = {On the complexity of some extended word problems defined by cancellation rules - Benois, Sakarovitch (0) (0) - a - a - l.pdf},
    ISSN = {0020-0190},
    Journal = {Information Processing Letters},
    Keywords = {Thue systems},
    Number = {5},
    Pages = {281 - 287},
    Title = {On the complexity of some extended word problems defined by cancellation rules},
    URL = {http://www.sciencedirect.com/science/article/pii/0020019086900876},
    Volume = {23},
    Year = {1986},
    bdsk-url-1 = {http://www.sciencedirect.com/science/article/pii/0020019086900876},
    bdsk-url-2 = {http://dx.doi.org/10.1016/0020-0190(86)90087-6},
    date-added = {2014-01-27 14:02:23 +0000},
    date-modified = {2014-01-27 14:02:23 +0000},
    doi = {10.1016/0020-0190(86)90087-6}
}

@article{Benois1986281, Author = {Benois, Mich{`e}le and Sakarovitch, Jacques}, File = {On the complexity of some extended word problems defined by cancellation rules - Benois, Sakarovitch (0) (0) - a - a - l.pdf}, ISSN = {0020-0190}, Journal = {Information Processing Letters}, Keywords = {Thue systems}, Number = {5}, Pages = {281 - 287}, Title = {On the complexity of some extended word problems defined by cancellation rules}, URL = {http://www.sciencedirect.com/science/article/pii/0020019086900876}, Volume = {23}, Year = {1986}, bdsk-url-1 = {http://www.sciencedirect.com/science/article/pii/0020019086900876}, bdsk-url-2 = {http://dx.doi.org/10.1016/0020-0190(86)90087-6}, date-added = {2014-01-27 14:02:23 +0000}, date-modified = {2014-01-27 14:02:23 +0000}, doi = {10.1016/0020-0190(86)90087-6} }