@article{DAN_1984_279_5_a16,
     author = {A. P. Veselov and L. A. Takhtadzhyan},
     title = {Integrability of {Novikov} equations for principal chiral fields with multivalued {Lagrangian}},
     journal = {Doklady Akademii Nauk},
     pages = {1097--1100},
     publisher = {mathdoc},
     volume = {279},
     number = {5},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1984_279_5_a16/}
}