JANECEK, Andreas; GROTTHOFF, Stefan Schulze; GANSTERER, Wilfried N. libNMF -- A Library for Nonnegative Matrix Factorization. COMPUTING AND INFORMATICS, [S. l.], v. 30, n. 2, p. 205–224, 2012. Disponível em: https://www.cai.sk/ojs/index.php/cai/article/view/161. Acesso em: 5 may. 2024.