@article{00885485,
title = {Criteria of unitary equivalence of Hermitian operators with a degenerate spectrum.},
journal = {Georgian Mathematical Journal},
volume = {3},
year = {1996},
pages = {141-152},
doi = {10.1007/BF02254737},
zbl = {0849.15006},
language = {en},
url = {http://dml.mathdoc.fr/item/00885485}
}
Lomidze, I. Criteria of unitary equivalence of Hermitian operators with a degenerate spectrum.. Georgian Mathematical Journal, Tome 3 (1996) pp. 141-152. doi : 10.1007/BF02254737. http://gdmltest.u-ga.fr/item/00885485/