Voir la notice de l'article provenant de la source Math-Net.Ru
@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/} }
I. M. Spitkovsky. A criterion for normality of operators in Hilbert space. Funkcionalʹnyj analiz i ego priloženiâ, Tome 16 (1982) no. 2, pp. 86-87. http://geodesic.mathdoc.fr/item/FAA_1982_16_2_a17/
[1] Khalmosh P., Gilbertovo prostranstvo v zadachakh, Mir, M., 1970 | MR
[2] Ivanovski N., Godishen zb., 7, Elektrotekhn. i mash. fak. un-t Skopje, 1974, 25–29
[3] Furuta T., Matsumoto K., Moriya N., Math. Japonicae, 21 (1976), 399–400 | MR | Zbl
[4] Campbell S., Pacific J. Math., 76:1 (1978), 17–19 | DOI | MR | Zbl
[5] Putnam C., Acta Sci. Math., 36:1–2 (1974), 111–117 | MR | Zbl