Janhunen, Juha (2011) "Unicorn, Mammoth, Whale" in Linguistics, Archaeology and the Human Past: Occasional Paper12. Kyoto: Institute for Humanity and Nature, Indus Project Research. p 189 - 222
Records of Strange Things (異物志) in Court Advisor Yang's works (楊議郎著書). quoted: "東北荒中有獸名獬豸一角性忠見人鬥則觸不直者聞人論則咋不正者" p. 27-28 of 980. Scanned by Chinese Text Project
Wang, Tao (2007), "Ritual Animals: Colour and Meaning (Part 1)", Bulletin of the School of Oriental and African Studies, University of London, 70 (2): 339, n132, JSTOR40379201
Cui Hao(崔浩 d. 450), cited in the annotative work Shiji Suoyin [zh] ("Seeking the Obscure in the Grand Scribe's Records").[4]
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Wang Chong 王充 (nd) [c. 85], "Shihying, chapter 52" 是應篇第五十二, Lunheng 論衡 [Discourses in the Balance] (in Chinese) – via Wikisource, 儒者說云:觟𧣾者、一角之羊也,性知有罪。皋陶治獄,其罪疑者,令羊觸之。有罪則觸,無罪則不觸。斯蓋天生一角聖獸,助獄為驗,故皋陶敬羊,起坐事之。此則神奇瑞應之類也。
ChunqiuZuo Zhuan, "Xuan 17", "zhuan" quote: (余將老,使郤子逞其志,庶有豸乎?); rough translation: "I will plead old age [to retire], and let Master Xi achieve his wish. Mayhap that shall lead to a solution / an understanding / clarity / decision?"