@article{ND_2007_3_4_a0,
     author = {A. I. Gudimenko},
     title = {Dynamics of perturbed equilateral and collinear configurations of three point vortices},
     journal = {Russian journal of nonlinear dynamics},
     pages = {379--391},
     publisher = {mathdoc},
     volume = {3},
     number = {4},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ND_2007_3_4_a0/}
}