@article{1195519806, author = {Nakamoto, Ritsuo}, title = {The powers of an operator of class $\mathcal{C}\_\rho$}, journal = {Proc. Japan Acad.}, volume = {48}, number = {10}, year = {1972}, pages = { 25-27}, language = {en}, url = {http://dml.mathdoc.fr/item/1195519806} }
Nakamoto, Ritsuo. The powers of an operator of class $\mathcal{C}_\rho$. Proc. Japan Acad., Tome 48 (1972) no. 10, pp. 25-27. http://gdmltest.u-ga.fr/item/1195519806/