Petukhov, A.A., A.N. Bogolyubov, and M.K. Trubetskov. 2016. “Hybrid Methods for Modeling Waveguides Containing Local Inhomogeneous Insets of Multilayer Structure”. Numerical Methods and Programming (Vychislitel’nye Metody I Programmirovanie) 17 (49):268-79. https://doi.org/10.26089/NumMet.v17r325.