Gorbachuk O. L. and Yakonska N. O. (1992) “Existence of the boundary in the Chesaro sense of a limited solution of the evolution equation in the Banach space”, Ukrains’kyi Matematychnyi Zhurnal, 44(9), pp. 1279-1280. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/8181 (Accessed: 27July2024).