@article{DAlessandro:2004:WQC:1046130.1046134,
    Address = {Essex, UK},
    Author = {D'Alessandro, Flavio and Varricchio, Stefano},
    File = {Well quasi-orders and context-free grammars - D'Alessandro, Varricchio (0) (0) - a - a - y.pdf},
    ISSN = {0304-3975},
    Journal = {Theor. Comput. Sci.},
    Keywords = {well quasi-orders},
    Month = {November},
    Number = {3},
    Pages = {255--268},
    Publisher = {Elsevier Science Publishers Ltd.},
    Title = {Well quasi-orders and context-free grammars},
    URL = {http://dx.doi.org/10.1016/j.tcs.2004.03.069},
    Volume = {327},
    Year = {2004},
    acmid = {1046134},
    bdsk-url-1 = {http://dx.doi.org/10.1016/j.tcs.2004.03.069},
    date-added = {2012-12-01 09:24:00 +0000},
    date-modified = {2012-12-01 15:07:49 +0000},
    issue_date = {2 November 2004},
    numpages = {14},
    doi = {10.1016/j.tcs.2004.03.069}
}

@article{DAlessandro:2004:WQC:1046130.1046134, Address = {Essex, UK}, Author = {D'Alessandro, Flavio and Varricchio, Stefano}, File = {Well quasi-orders and context-free grammars - D'Alessandro, Varricchio (0) (0) - a - a - y.pdf}, ISSN = {0304-3975}, Journal = {Theor. Comput. Sci.}, Keywords = {well quasi-orders}, Month = {November}, Number = {3}, Pages = {255--268}, Publisher = {Elsevier Science Publishers Ltd.}, Title = {Well quasi-orders and context-free grammars}, URL = {http://dx.doi.org/10.1016/j.tcs.2004.03.069}, Volume = {327}, Year = {2004}, acmid = {1046134}, bdsk-url-1 = {http://dx.doi.org/10.1016/j.tcs.2004.03.069}, date-added = {2012-12-01 09:24:00 +0000}, date-modified = {2012-12-01 15:07:49 +0000}, issue_date = {2 November 2004}, numpages = {14}, doi = {10.1016/j.tcs.2004.03.069} }