N. S., M., K. G., S., Elsayed, E. M., J. P., L., & B., R. (2026). $M^{*}$-matrices: Tridiagonal structure and signature similarity to $M$-matrices. Journal of Algebra Combinatorics Discrete Structures and Applications, 13(3), 409–421. https://doi.org/10.13069/jacodesmath.v13i3.446