@article{MZM_2023_114_1_a3,
     author = {A. Vishnevskaya and M. V. Demina},
     title = {Negative {Pell} {Equation} and {Stationary} {Configurations} of {Point} {Vortices} on the {Plane}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {57--67},
     publisher = {mathdoc},
     volume = {114},
     number = {1},
     year = {2023},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2023_114_1_a3/}
}