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\bibitem{3338} Zheng Huang, Kai Chen, Jianhua He, Xiang Bai, Dimosthenis Karatzas, Shijian Lu, et al. (2019). ICDAR2019 Competition on Scanned Receipt OCR and Information Extraction. In \textit{15th International Conference on Document Analysis and Recognition} (pp. 1516--1520).

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