HIGH-NUCLEARITY (CU<SUB>8</SUB>-BASED) CAGE SILSESQUIOXANES: SYNTHESIS AND STRUCTURAL STUDY ArticleBilyachenko A.N., Vologzhanina A.V., Astakhov G.S., Gutsul E.I., Shubina E.S., Levitsky M.M., Khrustalev V.N., Zubavichus Y.V.Crystal Growth and Design. Том 18. 2018. С. 2452-2457