Kazanko, O.V., and O.Ye. Penkina. “Study of Flocke-Bloch Waves Depending on the Spectral Parameter for a One-Dimensional Photonic Crystal”. Radiotekhnika, no. 219 (March 16, 2025): 104–111. Accessed April 6, 2025. http://rt.nure.ua/article/view/324902.