1. M. Kriener, M. Braden, H. Kierspel, D. Senff, O. Zabara, C. Zobel, and T. Lorenz, Phys. Rev. B: Condens. Matter Mater. Phys., 79, No. 22, 224104(1–9) (2009).
2. M. Kriener, C. Zobel, A. Reichl, J. Baier, M. Cwik, K. Berggold, H. Kierspel, O. Zabara, A. Freimuth, and T. Lorenz, Phys. Rev. B: Condens. Matter Mater. Phys., 69, No. 9, 094417(1–7) (2004).
3. O. A. Drozhzhin and S. V. Chernov, Al′tern. Energ. Ekol., 2, 99–105 (2008).
4. N. N. Oleynikov and V. A. Ketsko, Russ. J. Inorg. Chem., 49, No. 1, 1–21 (2004).
5. J. Shi, R. Yan, Y. Zhu, and X. Zhang, Talanta, 61, No. 2, 157–164 (2003).