SKRYPNIK, I. I. On averaging of nonlinear elliptic problems with inhomogeneous boundary conditions. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 47, n. 2, p. 269–276, 1995. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5412. Acesso em: 6 dec. 2025.