@article{MZM_2002_71_5_a4,
     author = {S. N. Lakaev and Zh. I. Abdullaev},
     title = {Spectrum of the {Three-Particle} {Schr\"odinger} {Difference} {Operator} on a {Lattice}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {686--696},
     year = {2002},
     volume = {71},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2002_71_5_a4/}
}