@article{DAN_1991_317_6_a18,
     author = {S. A. Vugal'ter and G. M. Zhislin},
     title = {On the discrete spectrum of {Hamiltonians} of multiparticle systems},
     journal = {Doklady Akademii Nauk},
     pages = {1365--1369},
     year = {1991},
     volume = {317},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1991_317_6_a18/}
}