@article{Brzozowski:1964:DRE:321239.321249,
    Address = {New York, NY, USA},
    Author = {Brzozowski, Janusz A.},
    File = {Derivatives of Regular Expressions - Brzozowski (0) (0) - a - a - i.pdf},
    ISSN = {0004-5411},
    Journal = {J. ACM},
    Keywords = {finite automata and regular expressions and classic},
    Month = {October},
    Number = {4},
    Pages = {481--494},
    Publisher = {ACM},
    Title = {Derivatives of Regular Expressions},
    URL = {http://doi.acm.org/10.1145/321239.321249},
    Volume = {11},
    Year = {1964},
    acmid = {321249},
    bdsk-url-1 = {http://doi.acm.org/10.1145/321239.321249},
    bdsk-url-2 = {http://dx.doi.org/10.1145/321239.321249},
    date-added = {2012-09-21 14:18:52 +0200},
    date-modified = {2012-12-05 18:05:19 +0000},
    issue_date = {Oct. 1964},
    numpages = {14},
    doi = {10.1145/321239.321249}
}

@article{Brzozowski:1964:DRE:321239.321249, Address = {New York, NY, USA}, Author = {Brzozowski, Janusz A.}, File = {Derivatives of Regular Expressions - Brzozowski (0) (0) - a - a - i.pdf}, ISSN = {0004-5411}, Journal = {J. ACM}, Keywords = {finite automata and regular expressions and classic}, Month = {October}, Number = {4}, Pages = {481--494}, Publisher = {ACM}, Title = {Derivatives of Regular Expressions}, URL = {http://doi.acm.org/10.1145/321239.321249}, Volume = {11}, Year = {1964}, acmid = {321249}, bdsk-url-1 = {http://doi.acm.org/10.1145/321239.321249}, bdsk-url-2 = {http://dx.doi.org/10.1145/321239.321249}, date-added = {2012-09-21 14:18:52 +0200}, date-modified = {2012-12-05 18:05:19 +0000}, issue_date = {Oct. 1964}, numpages = {14}, doi = {10.1145/321239.321249} }