Ashurova , Zebiniso Rakhimovna, Manzura Yunusaliyevna Juraeva, and Shaxnoza Xasanovna Orziyeva. 2024. “THESE RESULTS ARE THE ANSWERS TO THE PROBLEM PROPOSED BY E.M.LANDIS FOR 2-ORDERED POLYHARMONIC FUNCTIONS”. RESEARCH AND EDUCATION 3 (5):102-9. https://researchedu.org/index.php/re/article/view/6366.