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Acknowledgements
This work was supported by National Key Research and Development Program (Grant No. 2017YFB0803202), and National Natural Science Foundation of China (Grant No. 61472215).
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Zhang, J., Duan, H., Jiang, J. et al. Finding the best answer: measuring the optimization of public and authoritative DNS. Sci. China Inf. Sci. 62, 39107 (2019). https://doi.org/10.1007/s11432-017-9370-2
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DOI: https://doi.org/10.1007/s11432-017-9370-2