Жасыбаева, М. . and Нугманова, Г. (2022) “Spin system equivalent to the integrable Fokas-Lenells equation”, BULLETIN OF THE L.N. GUMILYOV EURASIAN NATIONAL UNIVERSITY. PHYSICS. ASTRONOMY SERIES, 122(1), pp. 53–57. doi: 10.32523/2616-6836-2018-122-1-53-57.