Sagart, Laurent. The origin of Chinese tones(PDF). Proceedings of the Symposium/Cross-Linguistic Studies of Tonal Phenomena/Tonogenesis, Typology and Related Topics. Institute for the Study of Languages and Cultures of Asia and Africa, Tokyo University of Foreign Studies. [1 December 2014]. (原始内容存档(PDF)于2016-09-23).
Mei, Tsu-Lin. Tones and Prosody in Middle Chinese and The Origin of The Rising Tone. Harvard Journal of Asiatic Studies. 1970, 30. JSTOR 2718766. doi:10.2307/2718766.
Mei, Tsu-Lin. Tones and Prosody in Middle Chinese and The Origin of The Rising Tone. Harvard Journal of Asiatic Studies. 1970, 30. JSTOR 2718766. doi:10.2307/2718766.
Sagart, Laurent. The origin of Chinese tones(PDF). Proceedings of the Symposium/Cross-Linguistic Studies of Tonal Phenomena/Tonogenesis, Typology and Related Topics. Institute for the Study of Languages and Cultures of Asia and Africa, Tokyo University of Foreign Studies. [1 December 2014]. (原始内容存档(PDF)于2016-09-23).