@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/}
}