@article{Kruskal1972297,
    Author = {Kruskal, Joseph B},
    File = {The theory of well-quasi-ordering A frequently discovered concept - Kruskal (0) (0) - a - a - n.pdf},
    ISSN = {0097-3165},
    Journal = {Journal of Combinatorial Theory, Series A},
    Keywords = {well quasi-orders},
    Number = {3},
    Pages = {297 - 305},
    Title = {The theory of well-quasi-ordering: A frequently discovered concept},
    URL = {http://www.sciencedirect.com/science/article/pii/0097316572900635},
    Volume = {13},
    Year = {1972},
    bdsk-url-1 = {http://www.sciencedirect.com/science/article/pii/0097316572900635},
    bdsk-url-2 = {http://dx.doi.org/10.1016/0097-3165(72)90063-5},
    date-added = {2012-12-29 14:43:00 +0000},
    date-modified = {2013-01-03 19:49:10 +0000},
    doi = {10.1016/0097-3165(72)90063-5}
}

@article{Kruskal1972297, Author = {Kruskal, Joseph B}, File = {The theory of well-quasi-ordering A frequently discovered concept - Kruskal (0) (0) - a - a - n.pdf}, ISSN = {0097-3165}, Journal = {Journal of Combinatorial Theory, Series A}, Keywords = {well quasi-orders}, Number = {3}, Pages = {297 - 305}, Title = {The theory of well-quasi-ordering: A frequently discovered concept}, URL = {http://www.sciencedirect.com/science/article/pii/0097316572900635}, Volume = {13}, Year = {1972}, bdsk-url-1 = {http://www.sciencedirect.com/science/article/pii/0097316572900635}, bdsk-url-2 = {http://dx.doi.org/10.1016/0097-3165(72)90063-5}, date-added = {2012-12-29 14:43:00 +0000}, date-modified = {2013-01-03 19:49:10 +0000}, doi = {10.1016/0097-3165(72)90063-5} }