Darin Brezeale.
``A Multiscale Approach for Nonnegative Matrix Factorization with Applications to Image Classification''

Ren-Cang Li, Yuji Nakatsukasa, Ninoslav Truhar, Wei-guo Wang.
``Perturbation of Multiple Eigenvalues of Hermitian Matrices''

T. Mahdjoub and C. Kribs-Zaleta.
``Assessment of The Invasion Speed of Triatomine Populations, Vectors of Chagas Disease''