@article{SIGMA_2022_18_a93,
     author = {Andrey V. Tsiganov},
     title = {Equivalent {Integrable} {Metrics} on the {Sphere} with {Quartic} {Invariants}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2022},
     volume = {18},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2022_18_a93/}
}