@article{Galil:1976:HCP:2696873.2696921,
    Address = {Secaucus, NJ, USA},
    Author = {Galil, Zvi},
    File = {10.1007\%2FBF00263744 (0) - a - a - f.pdf},
    ISSN = {0001-5903},
    Journal = {Acta Inf.},
    Month = {March},
    Number = {1},
    Pages = {77--88},
    Publisher = {Springer-Verlag New York, Inc.},
    Title = {Hierarchies of Complete Problems},
    URL = {http://dx.doi.org/10.1007/BF00263744},
    Volume = {6},
    Year = {1976},
    acmid = {2696921},
    bdsk-url-1 = {http://dx.doi.org/10.1007/BF00263744},
    date-added = {2017-12-06 08:16:52 +0000},
    date-modified = {2017-12-06 08:16:52 +0000},
    issue_date = {March 1976},
    numpages = {12},
    doi = {10.1007/BF00263744}
}

@article{Galil:1976:HCP:2696873.2696921, Address = {Secaucus, NJ, USA}, Author = {Galil, Zvi}, File = {10.1007\%2FBF00263744 (0) - a - a - f.pdf}, ISSN = {0001-5903}, Journal = {Acta Inf.}, Month = {March}, Number = {1}, Pages = {77--88}, Publisher = {Springer-Verlag New York, Inc.}, Title = {Hierarchies of Complete Problems}, URL = {http://dx.doi.org/10.1007/BF00263744}, Volume = {6}, Year = {1976}, acmid = {2696921}, bdsk-url-1 = {http://dx.doi.org/10.1007/BF00263744}, date-added = {2017-12-06 08:16:52 +0000}, date-modified = {2017-12-06 08:16:52 +0000}, issue_date = {March 1976}, numpages = {12}, doi = {10.1007/BF00263744} }