1. A. V. Korshunov, A. P. Il’in, A. I. Lotkov, et al., Izv. Tomsk. Politekh. Univ. 319(3), 10 (2011).
2. K. A. Solntsev, V. Yu. Zufman, N. A. Alad’ev, et al., Inorg. Mater. 44(8), 856 (2008).
3. S. A. Catledge, M. Fries, and Y. K. Vohra, in Encyclopedia of Nanoscience and Nanotechnology (American Scientific Publishers, 2004), Vol 1, p. 741.
4. A. A. Fomin, A. B. Shteingauer, V. N. Lyasnikov, et al., Tech. Phys. Lett. 38, 481 (2012).