Yuan-Fu Liao, Chi-Hui Hsu, Chi-Min Yang, Jeng-Shien Lin, Sen-Chia Chang. Within-class feature normalization for robust speech recognition. In INTERSPEECH 2008, 9th Annual Conference of the International Speech Communication Association, Brisbane, Australia, September 22-26, 2008. pages 1020-1023, ISCA, 2008. [doi]