@article{ZVMMF_1989_29_1_a0,
     author = {Kh. D. Ikramov},
     title = {A diagonalization theorem for a type of {Hamiltonian} using operator theory in spaces with an indefinite metric},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {3--14},
     publisher = {mathdoc},
     volume = {29},
     number = {1},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1989_29_1_a0/}
}