%0 Journal Article %A V. A. Kibkalo %T Noncompactness property of fibers and singularities of non-Euclidean Kovalevskaya system on pencil of Lie algebras %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 2020 %P 56-59 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_2020_6_a8/ %G ru %F VMUMM_2020_6_a8