%0 Journal Article %A P. E. Ryabov %A S. V. Sokolov %T Phase Topology of Two Vortices of Identical Intensities in a Bose – Einstein Condensate %J Russian journal of nonlinear dynamics %D 2019 %P 59-66 %V 15 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/ND_2019_15_1_a5/ %G en %F ND_2019_15_1_a5