Yuan-Cheng Chang, Sung-Chen Lin, Lee-Feng Chien, Keh-Jiann Chen, Lin-Shan Lee. 國語語音辨認中詞群語言模型之分群方法與應用 (Methodology Implementation and Application of Word-Class Based Language Model in Mandarin Speech Recognition) [In Chinese]. In Hsu Wang, editor, Proceedings of Rocling Computational Linguistics Conference VII, ROCLING 1994, Hsinchu, Taiwan, August 1994. pages 17-34, The Association for Computational Linguistics and Chinese Language Processing (ACLCLP), 1994. [doi]