For citations:

Bagmutov A.S., Najar H., Melikhov I.F., Popov I.Y. On the discrete spectrum of a quantum waveguide with Neumann windows in presence of exterior field. Nanosystems: Physics, Chemistry, Mathematics. 2022;13(2):156-163. https://doi.org/10.17586/2220-8054-2022-13-2-156-163