1. V. I. Berezkin, Carbon: Closed Nanoparticles, Macrostructures, Materials (ARTEGO, St. Petersburg, 2013) [in Russian].
2. V. I. Berezkin, Introduction to Physical Adsorption and Technology of Carbon Adsorbents (Viktoriya Plyus, St. Petersburg, 2013) [in Russian].
3. Q. Z. Xue and X. Zhang, Carbon 43, 760 (2005).
4. O. Gunnarson, Rev. Mod. Phys. 69, 575 (1997).
5. V. I. Berezkin, JETP Lett. 83, 388 (2006).