A first speech recognition system for Mandarin-English code-switch conversational speech. - Ngoc Thang Vu; Dau-Cheng Lyu; Jochen Weiner; Dominic Telaar; Tim Schlippe; Fabian Blaicher; Engsiong Chng; Tanja Schultz; Haizhou Li 001 (ICASSP, 2012)