@article{1102994415, author = {Mond, Bertram}, title = {An inequality for operators in a Hilbert space.}, journal = {Pacific J. Math.}, volume = {19}, number = {3}, year = {1966}, pages = { 161-163}, language = {en}, url = {http://dml.mathdoc.fr/item/1102994415} }
Mond, Bertram. An inequality for operators in a Hilbert space.. Pacific J. Math., Tome 19 (1966) no. 3, pp. 161-163. http://gdmltest.u-ga.fr/item/1102994415/