@article{10.1093/qmath/38.2.155,
    Author = {Cameron, Peter J.},
    EPrint = {https://academic.oup.com/qjmath/article-pdf/38/2/155/4439163/38-2-155.pdf},
    File = {Some treelike objects - cameron1987.pdf},
    ISSN = {0033-5606},
    Journal = {The Quarterly Journal of Mathematics},
    Month = {06},
    Number = {2},
    Pages = {155--183},
    Title = {Some treelike objects},
    URL = {https://doi.org/10.1093/qmath/38.2.155},
    Volume = {38},
    Year = {1987},
    bdsk-url-1 = {https://doi.org/10.1093/qmath/38.2.155},
    date-added = {2023-08-17 09:23:27 +0200},
    date-modified = {2023-08-17 09:23:42 +0200},
    doi = {10.1093/qmath/38.2.155}
}

@article{10.1093/qmath/38.2.155, Author = {Cameron, Peter J.}, EPrint = {https://academic.oup.com/qjmath/article-pdf/38/2/155/4439163/38-2-155.pdf}, File = {Some treelike objects - cameron1987.pdf}, ISSN = {0033-5606}, Journal = {The Quarterly Journal of Mathematics}, Month = {06}, Number = {2}, Pages = {155--183}, Title = {Some treelike objects}, URL = {https://doi.org/10.1093/qmath/38.2.155}, Volume = {38}, Year = {1987}, bdsk-url-1 = {https://doi.org/10.1093/qmath/38.2.155}, date-added = {2023-08-17 09:23:27 +0200}, date-modified = {2023-08-17 09:23:42 +0200}, doi = {10.1093/qmath/38.2.155} }