@article{1250181366, author = {Schwartz, Charles}, title = {The Schur and Hahn theorems for operators matrices}, journal = {Rocky Mountain J. Math.}, volume = {15}, number = {4}, year = {1985}, pages = { 61-74}, language = {en}, url = {http://dml.mathdoc.fr/item/1250181366} }
Schwartz, Charles. The Schur and Hahn theorems for operators matrices. Rocky Mountain J. Math., Tome 15 (1985) no. 4, pp. 61-74. http://gdmltest.u-ga.fr/item/1250181366/