Elsabrouty M, Aboulnasr T, Bouchard M. A recursive least-squares extension of the natural gradient algorithm for blind signal separation of audio mixtures. Canadian Acoustics [Internet]. 2004 Sep. 1 [cited 2024 Apr. 23];32(3):136-7. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1665