1. I. A. Gvozdkova and D. Yu. Parashchuk, Khim. Zhizn’, No. 3, 6 (2007).
2. D. Yu. Parashchuk and A. I. Kokorin, Ros. Khim. Zh. 52(6), 107 (2008).
3. V. Yu. Chumakov, V Mire Nauki, No. 4, 80 (2011).
4. V. I. Vissarionov, G. V. Deryugina, V. A. Kuznetsova, and N. K. Malinin, Solar Energetics, A Manual for Colleges (Mosk. Energet. Inst., Moscow, 2011) [in Russian].
5. A. Luque, J. Appl. Phys. 110, 031301 (2011).