Большой китайско-русский словарь
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Ni Guizhen or Ni Kwei-Tseng (1869 - 1931), mother of Song Ailing 宋蔼龄[Sòng Aǐ líng], Song Qingling 宋庆龄[Sòng Qìng líng] and Song Meiling 宋美龄[Sòng Měi líng]
倪桂珍 в энциклопедиях
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Ni Guizhen or Ni Kwei-Tseng (1869 - 1931), mother of Song Ailing 宋蔼龄[Sòng Aǐ líng], Song Qingling 宋庆龄[Sòng Qìng líng] and Song Meiling 宋美龄[Sòng Měi líng]