Nonlocal time multipoint nonlocal problem for a certain class of infinite order partial differential equations. Neliniini Kolyvannya, [S. l.], v. 18, n. 2, p. 176–191, 2015. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/779. Acesso em: 6 dec. 2025.