@article{UZERU_1988_2_a3,
     author = {R. V. Akopyan},
     title = {On the regularity of spectral function of {J-unitary} {J-dissipative} operator},
     journal = {Proceedings of the Yerevan State University. Physical and mathematical sciences},
     pages = {22--30},
     publisher = {mathdoc},
     number = {2},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/UZERU_1988_2_a3/}
}