Chen, Ning, Bernardete Ribeiro, and An Chen. “Using Non-Negative Matrix Factorization for Bankruptcy Analysis”. INFOCOMP Journal of Computer Science 10, no. 4 (December 1, 2011): 57–64. Accessed May 3, 2024. https://infocomp.dcc.ufla.br/index.php/infocomp/article/view/342.