Kulish В.В. “Single-Electron Optical Properties of Metal Nanoshells With a Nonconcentric Core. Account of Electron Spectrum Quantization”. Ukrainian Journal of Physics 56, no. 6 (February 10, 2022): 576. Accessed May 4, 2024. https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2022079.