NMR determination of enantiomeric composition of 1-substituted 3-amino-1,2-dicarba-closo-dodecaboranes using Eu(hfc)3 [Electronic resource] / M. I. Kodess, M. A. Ezhikova, G. L. Levit, V. P. Krasnov, V. N. Charushin // Journal of Organometallic Chemistry. - 2005. - Vol. 690. - № 11. - P. 2766-2768