@article{HGallier1991199,
    Author = {Gallier, Jean H.},
    File = {What's so special about Kruskal's theorem and the ordinal Γo? A survey of some results in proof theory - Gallier (0) (0) - a - a - j.pdf},
    ISSN = {0168-0072},
    Journal = {Annals of Pure and Applied Logic},
    Number = {3},
    Pages = {199 - 260},
    Title = {What's so special about Kruskal's theorem and the ordinal $\Gamma$? A survey of some results in proof theory},
    URL = {http://www.sciencedirect.com/science/article/pii/016800729190022E},
    Volume = {53},
    Year = {1991},
    bdsk-url-1 = {http://www.sciencedirect.com/science/article/pii/016800729190022E},
    bdsk-url-2 = {http://dx.doi.org/10.1016/0168-0072(91)90022-E},
    date-added = {2014-01-29 12:35:04 +0000},
    date-modified = {2014-01-29 12:35:04 +0000},
    file-2 = {What's so special about Kruskal's theorem and the ordinal Γo? A survey of some results in proof theory - Gallier (1) (0) - a - a - j.pdf},
    doi = {10.1016/0168-0072(91)90022-E}
}

@article{HGallier1991199, Author = {Gallier, Jean H.}, File = {What's so special about Kruskal's theorem and the ordinal Γo? A survey of some results in proof theory - Gallier (0) (0) - a - a - j.pdf}, ISSN = {0168-0072}, Journal = {Annals of Pure and Applied Logic}, Number = {3}, Pages = {199 - 260}, Title = {What's so special about Kruskal's theorem and the ordinal $\Gamma$? A survey of some results in proof theory}, URL = {http://www.sciencedirect.com/science/article/pii/016800729190022E}, Volume = {53}, Year = {1991}, bdsk-url-1 = {http://www.sciencedirect.com/science/article/pii/016800729190022E}, bdsk-url-2 = {http://dx.doi.org/10.1016/0168-0072(91)90022-E}, date-added = {2014-01-29 12:35:04 +0000}, date-modified = {2014-01-29 12:35:04 +0000}, file-2 = {What's so special about Kruskal's theorem and the ordinal Γo? A survey of some results in proof theory - Gallier (1) (0) - a - a - j.pdf}, doi = {10.1016/0168-0072(91)90022-E} }