@inproceedings{Czerwinski:2016:MTP:2902251.2902295,
    Address = {New York, NY, USA},
    Author = {Czerwinski, Wojciech and Martens, Wim and Niewerth, Matthias and Parys, Pawel},
    BookTitle = {Proceedings of the 35th ACM SIGMOD-SIGACT-SIGAI Symposium on Principles of Database Systems},
    ISBN = {978-1-4503-4191-2},
    Keywords = {XML, XPath, complexity, graph databases, optimization, tree patterns, trees},
    Location = {San Francisco, California, USA},
    Pages = {43--54},
    Publisher = {ACM},
    Series = {PODS '16},
    Title = {Minimization of Tree Pattern Queries},
    URL = {http://doi.acm.org/10.1145/2902251.2902295},
    Year = {2016},
    acmid = {2902295},
    bdsk-url-1 = {http://doi.acm.org/10.1145/2902251.2902295},
    bdsk-url-2 = {http://dx.doi.org/10.1145/2902251.2902295},
    date-added = {2017-01-11 07:47:05 +0000},
    date-modified = {2017-01-11 07:47:05 +0000},
    numpages = {12},
    doi = {10.1145/2902251.2902295}
}

@inproceedings{Czerwinski:2016:MTP:2902251.2902295, Address = {New York, NY, USA}, Author = {Czerwinski, Wojciech and Martens, Wim and Niewerth, Matthias and Parys, Pawel}, BookTitle = {Proceedings of the 35th ACM SIGMOD-SIGACT-SIGAI Symposium on Principles of Database Systems}, ISBN = {978-1-4503-4191-2}, Keywords = {XML, XPath, complexity, graph databases, optimization, tree patterns, trees}, Location = {San Francisco, California, USA}, Pages = {43--54}, Publisher = {ACM}, Series = {PODS '16}, Title = {Minimization of Tree Pattern Queries}, URL = {http://doi.acm.org/10.1145/2902251.2902295}, Year = {2016}, acmid = {2902295}, bdsk-url-1 = {http://doi.acm.org/10.1145/2902251.2902295}, bdsk-url-2 = {http://dx.doi.org/10.1145/2902251.2902295}, date-added = {2017-01-11 07:47:05 +0000}, date-modified = {2017-01-11 07:47:05 +0000}, numpages = {12}, doi = {10.1145/2902251.2902295} }