1. A. D. Akchurin, V. Yu. Kim, V. A. Panchenko, et al., in: Proc. XXIInd Russian Conf. “Radio Wave Propagation,” September 22–26, 2008, Rostov-on-Don–Loo, [in Russian], Vol. 2, p. 175.
2. V. L. Frolov, V. V. Belikovich, N. V. Bakhmetyeva, and A. A. Ushakov, in: Proc. XXIInd Russian Conf. “Radio Wave Propagation,” September 22–26, 2008, Rostov-on-Don–Loo, Vol. 2, p. 134.
3. G. G. Vertogradov, E. G. Vertogradova, V. P. Uryadov, et al., in: Proc. XXIIIrd Russian Conf. “Radio Wave Propagation,” May 23–26, 2011, Yoshkar-Ola, [in Russian], Vol. 2, p. 203.
4. E. Yu. Zykov, E. N. Sergeev, A. D. Akchurin, and I. A. Nasyrov, in: Proc. XXIIIrd Russian Conf. “Radio Wave Propagation,” May 23–26, 2011, Yoshkar-Ola [in Russian], Vol. 2, p. 235.
5. A. D. Akchurin, E. Yu. Zykov, K. M. Yusupov, et al., in: Proc. XXIIIrd Russian Conf. “Radio Wave Propagation,” May 23–26, 2011, Yoshkar-Ola [in Russian], Vol. 2, p. 185.