CHERNUKHA, O.Yu.; BILUSHCHAK, Yu.I.; CHUCHVARA, A.Ye. On the error of the approximate calculation of double integrals with variable upper limits. Carpathian Mathematical Publications, [S. l.], v. 16, n. 1, p. 267–289, 2024. DOI: 10.15330/cmp.16.1.267-289. Disponível em: https://ktipe.pnu.edu.ua/index.php/cmp/article/view/6190. Acesso em: 3 dec. 2024.