Hoan Hoa, Le, and Chu Van Tho. “DELAY - DIFFERENTIAL EQUATIONS WITH INFINITE DELAYS IN A BANACH SPACE”. Science and Technology Development Journal 1, no. 5 (May 31, 1998): 11-19. Accessed December 23, 2024. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/3729.