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Fang, F., Ruan, Y., Wu, J. et al. Preface of the Special Issue for Banghe Li’s 80th Anniversary. Acta. Math. Sin.-English Ser. 38, 1665 (2022). https://doi.org/10.1007/s10114-022-2998-x
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DOI: https://doi.org/10.1007/s10114-022-2998-x