Hoi Nghia, Nguyen. “REGULARIZED SOLUTIONS OF A CAUCHY PROBLEM FOR THE POISSON EQUATION IN THE UPPER HALF-SPACE.”. VNUHCM Journal of Science and Technology Development 4, no. 1&2 (February 28, 2001): 68-71. Accessed July 31, 2025. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/3475.