@article{VUU_2009_2_a4,
     author = {A. I. Gudimenko and K. G. Kuptsov},
     title = {Motion of three point vortices under the condition that one of them passes through the vorticity center},
     journal = {Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹ\^uternye nauki},
     pages = {37--51},
     publisher = {mathdoc},
     number = {2},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VUU_2009_2_a4/}
}