@article{Swan_1963,
    title = {An application of graph theory to algebra},
    volume = {14},
    issn = {1088-6826},
    url = {http://dx.doi.org/10.1090/S0002-9939-1963-0149468-6},
    doi = {10.1090/s0002-9939-1963-0149468-6},
    number = {3},
    journal = {Proceedings of the American Mathematical Society},
    publisher = {American Mathematical Society (AMS)},
    author = {Swan, Richard G.},
    year = {1963},
    month = {jun},
    pages = {367–373},
    date-added = {2025-10-29 22:36:37 +0100}
}

@article{Swan_1963, title = {An application of graph theory to algebra}, volume = {14}, issn = {1088-6826}, url = {http://dx.doi.org/10.1090/S0002-9939-1963-0149468-6}, doi = {10.1090/s0002-9939-1963-0149468-6}, number = {3}, journal = {Proceedings of the American Mathematical Society}, publisher = {American Mathematical Society (AMS)}, author = {Swan, Richard G.}, year = {1963}, month = {jun}, pages = {367–373}, date-added = {2025-10-29 22:36:37 +0100} }