Rasulov, R., Rasulov, V., Muminov, I., Mamatova, M., Raxmatullayeva, F. and Muxammadaminov, S. 2026. Electron States in a Five-Layer Semiconductor Structure. Part 1. East European Journal of Physics. 3 (Sep. 2026), 491-497. DOI:https://doi.org/10.26565/2312-4334-2026-3-44.