BON, Tran Van.
 On the existence of the solution and...variational formulation for the optimiza of the domain in elliptic problem.
<strong>VNU Journal of Science: Natural Sciences and Technology</strong>, [S.l.], v. 12, n. 4, dec. 1996.
ISSN 2588-1140.
Available at: &lt;<a href="https://js.vnu.edu.vn/NST/article/view/4133" target="_new">https://js.vnu.edu.vn/NST/article/view/4133</a>&gt;. Date accessed: 21 sep. 2024.