@article{1183425867, author = {Hildebrandt, T. H.}, title = {Convergence of sequences of linear operations}, journal = {Bull. Amer. Math. Soc.}, volume = {28}, number = {9}, year = {1922}, pages = { 53-58}, language = {en}, url = {http://dml.mathdoc.fr/item/1183425867} }
Hildebrandt, T. H. Convergence of sequences of linear operations. Bull. Amer. Math. Soc., Tome 28 (1922) no. 9, pp. 53-58. http://gdmltest.u-ga.fr/item/1183425867/