For citations:

Shabardin E.E., Karchevskii E.M. On the equivalence of differential and integral formulations of the problem for eigenwaves of weakly guiding dielectric waveguides. Uchenye Zapiski Kazanskogo Universiteta. Seriya Fiziko-Matematicheskie Nauki. 2025;167(3):566-587. (In Russ.) https://doi.org/10.26907/2541-7746.2025.3.566-587