@article{GMJ_1996__3_2_47521,
     author = {Lomidze, I.},
     title = {Criteria of unitary equivalence of {Hermitian} operators with a degenerate spectrum.},
     journal = {Georgian Mathematical Journal},
     pages = {141--152},
     publisher = {mathdoc},
     volume = {3},
     number = {2},
     year = {1996},
     zbl = {0849.15006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/GMJ_1996__3_2_47521/}
}