1.
Teymurazyan RR. TWO SIDE ESTIMATES FOR THE DOUBLE OBSTACLE PROBLEM. Proc. YSU A: Phys. Math. Sci. [Internet]. 2009 Feb. 19 [cited 2024 Sep. 19];43(1 (218):8-15. Available from: https://pub.ysu.am/index.php/proceedings-phys-math/article/view/vol43_no1_2009_pp008-015