@article{TMF_2006_149_2_a4,
     author = {Yu. Kh. \`Eshkabilov},
     title = {A~discrete ``three-particle" {Schr\"odinger} operator in {the~Hubbard} model},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {228--243},
     publisher = {mathdoc},
     volume = {149},
     number = {2},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2006_149_2_a4/}
}