Yaqoob, Sarah, and Khaldoun S. Al-Yasiri. “An Explicit Form of Harnack’s Inequality for Poisson’s Dirichlet Problem”. Journal of Kufa for Mathematics and Computer 11, no. 1 (March 30, 2024): 11–14. Accessed May 17, 2024. https://journal.uokufa.edu.iq/index.php/jkmc/article/view/13024.