ZHUMAGULOV, B. T.; TEMIRBEKOV, N. M.; ZHAKSYLYKOVA, Z. R. Variational method for approximate solution of the Dirichlet problem. International Journal of Mathematics and Physics, [S. l.], v. 10, n. 1, p. 43–50, 2019. DOI: 10.26577/ijmph-2019-i1-6. Disponível em: https://ijmph.kaznu.kz/index.php/kaznu/article/view/277. Acesso em: 4 may. 2024.