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@article{MAN_1994__300_2_165272, author = {Mitsuru Uchiyama}, title = {Powers and commutativity of selfadjoint operators.}, journal = {Mathematische Annalen}, pages = {643--648}, publisher = {mathdoc}, volume = {300}, number = {2}, year = {1994}, zbl = {0839.47015}, url = {http://geodesic.mathdoc.fr/item/MAN_1994__300_2_165272/} }
Mitsuru Uchiyama. Powers and commutativity of selfadjoint operators.. Mathematische Annalen, Tome 300 (1994) no. 2, pp. 643-648. http://geodesic.mathdoc.fr/item/MAN_1994__300_2_165272/