%0 Journal Article %A V. S. Safronov %T Gravitational instability in plane rotating systems having axial symmetry %J Doklady Akademii Nauk %D 1960 %P 53-56 %V 130 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1960_130_1_a13/ %G ru %F DAN_1960_130_1_a13