Yuqing Gao, Bowen Zhou, Liang Gu, Ruhi Sarikaya, Hong-Kwang Kuo, Antti-Veikko I. Rosti, Mohamed Afify, Weizhong Zhu: IBM Mastor: Multilingual Automatic Speech-To-Speech Translator. ICASSP (5) 2006: 1205-1208