@article{Kartzow:2013:FLH:2480759.2480760,
    Address = {New York, NY, USA},
    Author = {Kartzow, Alexander},
    File = {First-Order Logic on Higher-Order Nested Pushdown Trees - Kartzow (0) (0) - a - a - d.pdf},
    ISSN = {1529-3785},
    Journal = {ACM Trans. Comput. Logic},
    Keywords = {higher-order pushdown automata and nested tree automata},
    Month = {June},
    Number = {2},
    Pages = {8:1--8:45},
    Publisher = {ACM},
    Title = {First-Order Logic on Higher-Order Nested Pushdown Trees},
    URL = {http://doi.acm.org/10.1145/2480759.2480760},
    Volume = {14},
    Year = {2013},
    acmid = {2480760},
    articleno = {8},
    bdsk-url-1 = {http://doi.acm.org/10.1145/2480759.2480760},
    bdsk-url-2 = {http://dx.doi.org/10.1145/2480759.2480760},
    date-added = {2013-07-15 17:54:55 +0000},
    date-modified = {2013-07-15 18:03:02 +0000},
    issue_date = {June 2013},
    numpages = {45},
    doi = {10.1145/2480759.2480760}
}

@article{Kartzow:2013:FLH:2480759.2480760, Address = {New York, NY, USA}, Author = {Kartzow, Alexander}, File = {First-Order Logic on Higher-Order Nested Pushdown Trees - Kartzow (0) (0) - a - a - d.pdf}, ISSN = {1529-3785}, Journal = {ACM Trans. Comput. Logic}, Keywords = {higher-order pushdown automata and nested tree automata}, Month = {June}, Number = {2}, Pages = {8:1--8:45}, Publisher = {ACM}, Title = {First-Order Logic on Higher-Order Nested Pushdown Trees}, URL = {http://doi.acm.org/10.1145/2480759.2480760}, Volume = {14}, Year = {2013}, acmid = {2480760}, articleno = {8}, bdsk-url-1 = {http://doi.acm.org/10.1145/2480759.2480760}, bdsk-url-2 = {http://dx.doi.org/10.1145/2480759.2480760}, date-added = {2013-07-15 17:54:55 +0000}, date-modified = {2013-07-15 18:03:02 +0000}, issue_date = {June 2013}, numpages = {45}, doi = {10.1145/2480759.2480760} }