E. N. Okonkwo, J. U. Okeke, and S. I. Onyeagu, “Multivariate Rank Discriminant Classifier of Small Sample”, IJSBAR, vol. 20, no. 2, pp. 165–172, Feb. 2015, Accessed: Jun. 15, 2026. [Online]. Available: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/1774