TY - JOUR AU - L. G. Kurakin AU - I. V. Ostrovskaya TI - On the Stability of Thomson's Vortex $N$-gon and a Vortex Tripole/Quadrupole in Geostrophic Models of Bessel Vortices and in a Two-Layer Rotating Fluid: a Review JO - Russian journal of nonlinear dynamics PY - 2019 SP - 533 EP - 542 VL - 15 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ND_2019_15_4_a12/ LA - en ID - ND_2019_15_4_a12 ER -