@article{DAN_1989_305_4_a8,
     author = {S. T. Belyaev and Yu. K. Krasnov},
     title = {On the motion of a singular vortex and its mass},
     journal = {Doklady Akademii Nauk},
     pages = {808--811},
     publisher = {mathdoc},
     volume = {305},
     number = {4},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1989_305_4_a8/}
}