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S. Ivanov, E. Alexov, and P. Malinov. Waveguide partially filled with semiconductor plasma. Physica Scripta, IOP Publishing, volume 42, issue 4, pages 452, 1990.

S. Ivanov, E. Alexov, and P. Malinov. Nonsymmetrical Electromagnetic Waves in Partially Plasma—Filled Waveguide. Contributions to Plasma Physics, WILEY-VCH Verlag Berlin, volume 30, issue 6, pages 755-762, 1990.

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