@article{Tor_n_2004,
    doi = {10.1137/s009753970241096x},
    url = {https://doi.org/10.1137%2Fs009753970241096x},
    year = {2004},
    month = {jan},
    publisher = {Society for Industrial {\&} Applied Mathematics ({SIAM})},
    volume = {33},
    number = {5},
    pages = {1093--1108},
    author = {Jacobo Tor{\'{a}}n},
    title = {On the Hardness of Graph Isomorphism},
    journal = {{SIAM} Journal on Computing}
}

@article{Tor_n_2004, doi = {10.1137/s009753970241096x}, url = {https://doi.org/10.1137%2Fs009753970241096x}, year = {2004}, month = {jan}, publisher = {Society for Industrial {\&} Applied Mathematics ({SIAM})}, volume = {33}, number = {5}, pages = {1093--1108}, author = {Jacobo Tor{\'{a}}n}, title = {On the Hardness of Graph Isomorphism}, journal = {{SIAM} Journal on Computing} }