V. V. Mesilov, V. R. Galakhov, B. A. Gizhevskii, V. S. Gaviko, N. A. Ovechkina, A. Buling, “Application of X-ray absorption spectroscopy to the investigation of charge states of iron ions in iron borate nanoceramics”, Fizika Tverdogo Tela, 56:2 (2014), 282–286; Phys. Solid State, 56:2 (2013), 282–286
