@article{ND_2010_6_2_a5,
     author = {A. I. Gudimenko and A. D. Zakharenko},
     title = {Qualitative analysis of relative motion of three vortices},
     journal = {Russian journal of nonlinear dynamics},
     pages = {307--326},
     publisher = {mathdoc},
     volume = {6},
     number = {2},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ND_2010_6_2_a5/}
}