1. E. L. Gusev, Preprint, YaF SO AN SSSR (Yakutsk Branch, Siberian Division, Academy of Sciences of the USSR, 1990).
2. E. L. Gusev, Mathematical Methods of the Synthesis of Layered Structures (Nauka, Novosibirsk, 1993).
3. V. T. Grinchenko and V. V. Meleshko, Harmonic Oscillations and Waves in Elastic Bodies (Naukova Dumka, Kiev, 1981).
4. E. L. Gusev, Dokl. Akad. Nauk 346(3), 324 (1996) [Phys. Dokl. 41 (1), 13 (1996)].
5. E. L. Gusev, Dokl. Akad. Nauk 349(3), 329 (1996) [Phys. Dokl. 41 (7), 325 (1996)].