R. L. Volkov, N. I. Borgardt, V. N. Kukin, A. V. Agafonov, V. O. Kuznetsov, “Studying submicron voids in pyroboroncarbon with the focused ion beam technique”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 39:18 (2013), 53–60; Tech. Phys. Lett., 39:9 (2013), 822–824
