@article{DAN_1974_217_2_a5,
     author = {V. A. Marchenko},
     title = {A periodic {Korteweg{\textendash}de} {Vries} problem},
     journal = {Doklady Akademii Nauk},
     pages = {276--279},
     year = {1974},
     volume = {217},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1974_217_2_a5/}
}