@article{MZM_1975_17_5_a6,
     author = {L. M. Raikh},
     title = {On the extension of a~$J${-Hermitian} operator with nondense domain of definition},
     journal = {Matemati\v{c}eskie zametki},
     pages = {737--743},
     publisher = {mathdoc},
     volume = {17},
     number = {5},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1975_17_5_a6/}
}