1. Feldman, L.B., Siok, W.W.T.: Semantic Radicals in Phonetic Compounds: Implica-tions for Visual Character Recognition in Chinese. In: Wang, J., Chen, H., Radach, R., Inhoff, A. (eds.) Reading Chinese Script: A Cognitive Analysis, pp. 19–33. Psychology Press, Wang (1999)
2. Su, X.: Radical Awareness among Chinese-as-a-Foreign-Language Learners. Ph.D. thesis, Sch. of Tch. Ed., Florida State Univ., Tallahassee, FL (2010)
3. Morgan, Y.K.: Attitudes toward Hanzi Production Ability among Chinese Teachers and Learners. Ph.D. thesis, Grad. Sch., Purdue Univ., West Lafayette, IN (2012)
4. Li, J., Zhou, J.: Chinese Character Structure Analysis Based on Complex Networks. Physica A: Statistical Mechanics and its Applications 380, 629–638 (2007)
5. Wang, J., Rong, L., Jin, T.: An Empirical Study of Chinese Word-Word Language Directed Network. In: IEEE International Conference on Service Operations and Logistics, and Informatics, October 12-15, vol. 1, pp. 498–501 (2008)