Analysis of information sources in references of the Wikipedia article "Doctrine of the Mean" in English language version.
...for the musicology section of the Sui shu also quotes the Southern Dynasty scholar Shen Yue (441—513) as saying that portions of the Zisizi are still to be seen in the Book of Rites, namely the Doctrine of the Mean... The biography of Confucius in the Shiji... also names Zisi as the author of the Doctrine of the Mean. Based on the Shiji and the Sui Shu, we can see that the Doctrine of the Mean has traditionally been attributed to Zisi. And while that traditional ascription was not challenged for centuries, some questions raised during that time as to the original organization... Wang Bo (1197—1274)... never went so far as to doubt that any of the 31 sections were not written by Zisi. That was left to the Qing dynasty scholar Cui Shu (1740—1816)... Some modern scholars have tried to combine the insights of Wang and Cui by suggesting multiple authorship of the Doctrine of the Mean. Specifically, it has been suggested that either the entire first half or the second through to the nineteenth sections thereof were penned by Zisi, with the remaining sections being added later by students of either Mencius or Zisi. Other evidence has been put forth to support the view that the Doctrine of the Mean is made up of materials written by Zisi and other unknown author or authors during the transition from the Qin dynasty to the Han dynasty..."
For the diverse opinions regarding the date and authorship of the Doctrine of the Mean, see Xu Fuguan, "Zhongyong de diwei wenti: jin jiuzheng yu Qian Binsi xiansheng"..., in Xueshu yu zhengzhi zhijian ..., vol. 2. (Jiulong: Nan shan shu wu, 1976), 322—38
In another of Confucius's four major books, The Doctrine of the Mean...
The Doctrine of the Mean (Zhongyong, 中庸) was originally a chapter in The Classic of Rites. The authorship of The Doctrine of the Mean is controversial. It is said to be written by Tzu Ssu (Zi Si, 子思) a disciple of Zeng Shen, but it is also maintained that it was written by Confucians during the Han Dynasties.
The Doctrine of the Mean (Zhongyong, 中庸) was originally a chapter in The Classic of Rites. The authorship of The Doctrine of the Mean is controversial. It is said to be written by Tzu Ssu (Zi Si, 子思) a disciple of Zeng Shen, but it is also maintained that it was written by Confucians during the Han Dynasties.
The Doctrine of the Mean (Zhongyong, 中庸) was originally a chapter in The Classic of Rites. The authorship of The Doctrine of the Mean is controversial. It is said to be written by Tzu Ssu (Zi Si, 子思) a disciple of Zeng Shen, but it is also maintained that it was written by Confucians during the Han Dynasties.
The Doctrine of the Mean (Zhongyong, 中庸) was originally a chapter in The Classic of Rites. The authorship of The Doctrine of the Mean is controversial. It is said to be written by Tzu Ssu (Zi Si, 子思) a disciple of Zeng Shen, but it is also maintained that it was written by Confucians during the Han Dynasties.