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@article{CMUC_1967__8_1_a2, author = {Marek, Ivo}, title = {An infinite dimensional analogue of {R.} {S.} {Varga's} lemma}, journal = {Commentationes Mathematicae Universitatis Carolinae}, pages = {27--38}, publisher = {mathdoc}, volume = {08}, number = {1}, year = {1967}, mrnumber = {0232263}, zbl = {0169.17201}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMUC_1967__8_1_a2/} }
Marek, Ivo. An infinite dimensional analogue of R. S. Varga's lemma. Commentationes Mathematicae Universitatis Carolinae, Tome 08 (1967) no. 1, pp. 27-38. http://geodesic.mathdoc.fr/item/CMUC_1967__8_1_a2/