@article{FAA_1982_16_2_a17,
     author = {I. M. Spitkovsky},
     title = {A criterion for normality of operators in {Hilbert} space},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {86--87},
     publisher = {mathdoc},
     volume = {16},
     number = {2},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1982_16_2_a17/}
}