TY  - JOUR
AU  - I. M. Spitkovsky
TI  - A criterion for normality of operators in Hilbert space
JO  - Funkcionalʹnyj analiz i ego priloženiâ
PY  - 1982
SP  - 86
EP  - 87
VL  - 16
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FAA_1982_16_2_a17/
LA  - ru
ID  - FAA_1982_16_2_a17
ER  -