1.
Dumanyan VZ. ON THE ESTIMATION OF $\{|\triangledown u|^2dx$ FOR SOLUTIONS OF SECOND ORDER ELLIPTIC EQUATIONS. Proc. YSU A: Phys. Math. Sci. [Internet]. 2023 Sep. 19 [cited 2024 Jul. 22];42(2 (216):145-7. Available from: https://journals.ysu.am/index.php/proceedings-phys-math/article/view/vol42_no2_2008_p145-147