Team, Support. “Inversion of Matrices over Boolean Semirings: N. Sirasuntorn, N. Udomsub”. Thai Journal of Mathematics 7, no. 1 (June 1, 2009): 105–113. Accessed May 7, 2024. https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/148.