D. V. Permyakov, V. I. Kondratiev, D. A. Pidgayko, I. S. Sinev, A. K. Samusev, “Probing optical losses and dispersion of fully guided waves through critical evanescent coupling”, Pis'ma v Zh. Èksper. Teoret. Fiz., 113:12 (2021), 809–816; JETP Letters, 113:12 (2021), 780–786
