@article{Ramana_1994,
    doi = {10.1016/0012-365x(94)90241-0},
    url = {https://doi.org/10.1016%2F0012-365x%2894%2990241-0},
    year = {1994},
    month = {sep},
    publisher = {Elsevier {BV}},
    volume = {132},
    number = {1-3},
    pages = {247--265},
    author = {Motakuri V. Ramana and Edward R. Scheinerman and Daniel Ullman},
    title = {Fractional isomorphism of graphs},
    journal = {Discrete Mathematics}
}

@article{Ramana_1994, doi = {10.1016/0012-365x(94)90241-0}, url = {https://doi.org/10.1016%2F0012-365x%2894%2990241-0}, year = {1994}, month = {sep}, publisher = {Elsevier {BV}}, volume = {132}, number = {1-3}, pages = {247--265}, author = {Motakuri V. Ramana and Edward R. Scheinerman and Daniel Ullman}, title = {Fractional isomorphism of graphs}, journal = {Discrete Mathematics} }