@article{DAN_1994_335_2_a5,
     author = {M. V. Novitskii},
     title = {Quasi-analytic classes of decreasing functions and integrals of motion of the {Korteweg--de} {Vries} equation},
     journal = {Doklady Akademii Nauk},
     pages = {150--152},
     publisher = {mathdoc},
     volume = {335},
     number = {2},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1994_335_2_a5/}
}