1. Chao, Y.R.: A Grammar of Spoken Chinese. The Commercial Press, Beijing (2011)
2. Zhu, D.X.: Notes on Grammar. The Commercial Press, Beijing (1982)
3. Yuan, Y.L.: Topicalization and grammatical relations. Stud. Chin. Lang. 4, 241–254 (1996)
4. Shen, J.X.: On minor sentence and flowing sentences in Chinese: in commemoration of the 120th birthday of Yuen Ren Chao. Stud. Chin. Lang. 5, 403–415 (2012)
5. Chen, G.H., Wang, J.G.: Unmarked non-subject topics in Chinese. Chinese Teach. World. 3, 310–323 (2010)