@article{SIGMA_2022_18_a5,
     author = {Igor Krichever and Nikita Nekrasov},
     title = {Novikov{\textendash}Veselov {Symmetries} of the {Two-Dimensional} $O(N)$ {Sigma} {Model}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2022},
     volume = {18},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2022_18_a5/}
}