@article{Georgiadis_2016,
    doi = {10.1145/2968448},
    url = {https://doi.org/10.1145%2F2968448},
    year = {2016},
    month = {oct},
    publisher = {Association for Computing Machinery ({ACM})},
    volume = {13},
    number = {1},
    pages = {1--24},
    author = {Loukas Georgiadis and Giuseppe F. Italiano and Luigi Laura and Nikos Parotsidis},
    title = {2-Edge Connectivity in Directed Graphs},
    journal = {{ACM} Transactions on Algorithms}
}

@article{Georgiadis_2016, doi = {10.1145/2968448}, url = {https://doi.org/10.1145%2F2968448}, year = {2016}, month = {oct}, publisher = {Association for Computing Machinery ({ACM})}, volume = {13}, number = {1}, pages = {1--24}, author = {Loukas Georgiadis and Giuseppe F. Italiano and Luigi Laura and Nikos Parotsidis}, title = {2-Edge Connectivity in Directed Graphs}, journal = {{ACM} Transactions on Algorithms} }