Жасыбаева, М.Б., and Г.Н. Нугманова. “Spin System Equivalent to the Integrable Fokas-Lenells Equation”. BULLETIN OF THE L.N. GUMILYOV EURASIAN NATIONAL UNIVERSITY. PHYSICS. ASTRONOMY SERIES 122, no. 1 (July 4, 2022): 53–57. Accessed November 24, 2024. https://bulphysast.enu.kz/index.php/physast/article/view/92.