%0 Journal Article %A D. O. Tsvetkov %T Normal oscillations of ideal stratified fluid with a free surface completely covered with the elastic ice %J Taurida Journal of Computer Science Theory and Mathematics %D 2017 %P 79-93 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/TVIM_2017_3_a4/ %G ru %F TVIM_2017_3_a4