@article{TMF_1982_53_2_a3,
     author = {Kh. Zholondek},
     title = {Essential spectrum of an~$N$-particle additive cluster operator},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {216--226},
     year = {1982},
     volume = {53},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1982_53_2_a3/}
}