Думин, А. Н. and Ахмедов, Р. Д. (2018) “Modal transformation of nonstationary electromagnetic field in unbounded nonlinear medium”, Visnyk of V.N. Karazin Kharkiv National University, series “Radio Physics and Electronics”, 0(26), pp. 42-47. Available at: https://periodicals.karazin.ua/radiophysics/article/view/10175 (Accessed: 23December2025).