@article{Ding:1992:SW:152782.152791,
    Address = {New York, NY, USA},
    Author = {Ding, Guoli},
    ISSN = {0364-9024},
    Journal = {J. Graph Theory},
    Keywords = {well quasi-orders and no pdf},
    Month = {November},
    Number = {5},
    Pages = {489--502},
    Publisher = {John Wiley \& Sons, Inc.},
    Title = {Subgraphs and well-quasi-ordering},
    URL = {http://dx.doi.org/10.1002/jgt.3190160509},
    Volume = {16},
    Year = {1992},
    acmid = {152791},
    bdsk-url-1 = {http://dx.doi.org/10.1002/jgt.3190160509},
    date-added = {2012-12-18 11:56:36 +0000},
    date-modified = {2013-08-29 07:04:44 +0000},
    issue_date = {Nov. 1992},
    numpages = {14},
    doi = {10.1002/jgt.3190160509}
}

@article{Ding:1992:SW:152782.152791, Address = {New York, NY, USA}, Author = {Ding, Guoli}, ISSN = {0364-9024}, Journal = {J. Graph Theory}, Keywords = {well quasi-orders and no pdf}, Month = {November}, Number = {5}, Pages = {489--502}, Publisher = {John Wiley \& Sons, Inc.}, Title = {Subgraphs and well-quasi-ordering}, URL = {http://dx.doi.org/10.1002/jgt.3190160509}, Volume = {16}, Year = {1992}, acmid = {152791}, bdsk-url-1 = {http://dx.doi.org/10.1002/jgt.3190160509}, date-added = {2012-12-18 11:56:36 +0000}, date-modified = {2013-08-29 07:04:44 +0000}, issue_date = {Nov. 1992}, numpages = {14}, doi = {10.1002/jgt.3190160509} }