@inproceedings{zhang-2018-comparison,
    title = "A Comparison of Tone Normalization Methods for Language Variation Research",
    author = "Zhang, Jingwei",
    editor = "Politzer-Ahles, Stephen  and
      Hsu, Yu-Yin  and
      Huang, Chu-Ren  and
      Yao, Yao",
    booktitle = "Proceedings of the 32nd Pacific Asia Conference on Language, Information and Computation",
    month = "1–3 " # dec,
    year = "2018",
    address = "Hong Kong",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/iwcs-25-ingestion/Y18-1095/"
}