Jing Wu and Wei Lv and Yibing Li and Yuanfan You, A Mixing Matrix Estimation Algorithm for Speech Signals under the Under-Determined Blind Source Separation Model. journal = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology. May 2019, vol. 150(6). 412 - 416 [viewed 23 September 2024]. Available from: https://publications.waset.org/pdf/10010468.