@inproceedings{Chandra:1979:CQR:800135.804423,
    Address = {New York, NY, USA},
    Author = {Chandra, Ashok K. and Harel, David},
    BookTitle = {Proceedings of the eleventh annual ACM symposium on Theory of computing},
    File = {Computable queries for relational data bases (Preliminary Report) - Chandra, Harel (0) (0) - a - a - u.pdf},
    Location = {Atlanta, Georgia, United States},
    Pages = {309--318},
    Publisher = {ACM},
    Series = {STOC '79},
    Title = {Computable queries for relational data bases (Preliminary Report)},
    URL = {http://doi.acm.org/10.1145/800135.804423},
    Year = {1979},
    acmid = {804423},
    bdsk-url-1 = {http://doi.acm.org/10.1145/800135.804423},
    bdsk-url-2 = {http://dx.doi.org/10.1145/800135.804423},
    date-added = {2012-05-26 17:07:41 +0200},
    date-modified = {2012-05-26 15:07:41 +0000},
    numpages = {10},
    doi = {10.1145/800135.804423}
}

@inproceedings{Chandra:1979:CQR:800135.804423, Address = {New York, NY, USA}, Author = {Chandra, Ashok K. and Harel, David}, BookTitle = {Proceedings of the eleventh annual ACM symposium on Theory of computing}, File = {Computable queries for relational data bases (Preliminary Report) - Chandra, Harel (0) (0) - a - a - u.pdf}, Location = {Atlanta, Georgia, United States}, Pages = {309--318}, Publisher = {ACM}, Series = {STOC '79}, Title = {Computable queries for relational data bases (Preliminary Report)}, URL = {http://doi.acm.org/10.1145/800135.804423}, Year = {1979}, acmid = {804423}, bdsk-url-1 = {http://doi.acm.org/10.1145/800135.804423}, bdsk-url-2 = {http://dx.doi.org/10.1145/800135.804423}, date-added = {2012-05-26 17:07:41 +0200}, date-modified = {2012-05-26 15:07:41 +0000}, numpages = {10}, doi = {10.1145/800135.804423} }