@article{SM_1993_75_2_a6,
     author = {D. Sh. Lundina and V. A. Marchenko},
     title = {Compactness of the set of multisoliton solutions of the nonlinear {Schr\"odinger} equation},
     journal = {Sbornik. Mathematics},
     pages = {429--443},
     year = {1993},
     volume = {75},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1993_75_2_a6/}
}