@inproceedings{Takes_2011,
    doi = {10.1145/2063576.2063748},
    url = {https://doi.org/10.1145%2F2063576.2063748},
    year = {2011},
    month = {oct},
    publisher = {{ACM}},
    author = {Frank W. Takes and Walter A. Kosters},
    title = {Determining the diameter of small world networks},
    booktitle = {Proceedings of the 20th {ACM} international conference on Information and knowledge management}
}

@inproceedings{Takes_2011, doi = {10.1145/2063576.2063748}, url = {https://doi.org/10.1145%2F2063576.2063748}, year = {2011}, month = {oct}, publisher = {{ACM}}, author = {Frank W. Takes and Walter A. Kosters}, title = {Determining the diameter of small world networks}, booktitle = {Proceedings of the 20th {ACM} international conference on Information and knowledge management} }