Viet Hung, Nguyen. “STUDY OF THE EXISTENCE AND STABILITY OF SPATIAL SOLITON BEAMS IN HIGHER-ORDER NONLINEAR OPTICAL FIBERS WITH GAIN AND LOSS”. Journal of Science Natural Science 71, no. 3 (September 30, 2026): 53–65. Accessed October 17, 2026. https://hnuejs.edu.vn/ns/article/view/1601.