@article{UFA_2021_13_2_a11,
     author = {I. T. Habibullin and A. R. Khakimova and A. O. Smirnov},
     title = {Generalized invariant manifolds for integrable equations and their applications},
     journal = {Ufa mathematical journal},
     pages = {135--151},
     publisher = {mathdoc},
     volume = {13},
     number = {2},
     year = {2021},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UFA_2021_13_2_a11/}
}