@article{FAA_1974_8_3_a6,
     author = {S. P. Novikov},
     title = {The periodic problem for the {Korteweg--de} {Vries} equation},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {54--66},
     publisher = {mathdoc},
     volume = {8},
     number = {3},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1974_8_3_a6/}
}