Koren, E. V. The study of the strength characteristics of refractory dodecaborides rare earth metals with a structure of UB12 / E. V. Koren // Modern scientsfsc research and their practscal application, edited by Alexandr G. Shibaev, Alexandra D. Marcova. Vol. J21314(Kupriyenko SV, Odessa, 2013). - URL:http:www.com.ua/e-journal/J21314.pdf(date: J21314-007)