GORBACHUK , O. L.; YAKONSKA , N. O. Existence of the boundary in the Chesaro sense of a limited solution of the evolution equation in the Banach space. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 44, n. 9, p. 1279–1280, 1992. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/8181. Acesso em: 5 dec. 2025.