@article{JETPL.117.590,
    title = {Nonuniformly Filled Vortex Rings in Nonlinear Optics},
    author = {Ruban, V. P.},
    journal = {JETP Lett.},
    volume = {117},
    issue = {8},
    pages = {583},
    year = {2023},
    doi = {10.1134/S0021364023600817},
    url = {http://jetpletters.ru/ps/dx/10.31857/S1234567823080049},
    note = {[Pisma v ZhETF 117, 590 (2023)]}
}