@article{Kruskal_1960,
    doi = {10.2307/1993287},
    url = {https://doi.org/10.2307%2F1993287},
    year = {1960},
    month = {may},
    publisher = {{JSTOR}},
    volume = {95},
    number = {2},
    pages = {210},
    author = {J. B. Kruskal},
    title = {Well-Quasi-Ordering, The Tree Theorem, and Vazsonyi{\textquotesingle}s Conjecture},
    journal = {Transactions of the American Mathematical Society}
}

@article{Kruskal_1960, doi = {10.2307/1993287}, url = {https://doi.org/10.2307%2F1993287}, year = {1960}, month = {may}, publisher = {{JSTOR}}, volume = {95}, number = {2}, pages = {210}, author = {J. B. Kruskal}, title = {Well-Quasi-Ordering, The Tree Theorem, and Vazsonyi{\textquotesingle}s Conjecture}, journal = {Transactions of the American Mathematical Society} }