An optimal control problem for a Poisson equation with nonlocal boundary-value conditions. Neliniini Kolyvannya, [S. l.], v. 16, n. 3, p. 350–358, 2013. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/703. Acesso em: 21 jan. 2026.