CONF Tong_ICASSP_2019/IDIAP AN INVESTIGATION OF MULTILINGUAL ASR USING END-TO-END LF-MMI Tong, Sibo Garner, Philip N. Bourlard, Hervé EXTERNAL http://publications.idiap.ch/attachments/papers/2019/Tong_ICASSP_2019.pdf PUBLIC International Conference on Acoustics, Speech and Signal Processing 2019