Madeiro F, Vilar RM, Aguiar Neto BG, Alencar MS. An Algorithm for Voice Waveform VQ Codebook Design Based on PCA. Journal of Communication and Information Systems [Internet]. 2018 Feb. 12 [cited 2025 Sep. 30];15(2). Available from: https://jcis.sbrt.org.br/jcis/article/view/527