TY - JOUR AU - Igor Krichever AU - Nikita Nekrasov TI - Novikov–Veselov Symmetries of the Two-Dimensional $O(N)$ Sigma Model JO - Symmetry, integrability and geometry: methods and applications PY - 2022 VL - 18 UR - http://geodesic.mathdoc.fr/item/SIGMA_2022_18_a5/ LA - en ID - SIGMA_2022_18_a5 ER -