Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MAN_1979__246_163339, author = {Fumio Kubo and Tsuyoshi Ando}, title = {Means of {Positive} {Linear} {Operators.}}, journal = {Mathematische Annalen}, pages = {205--224}, publisher = {mathdoc}, volume = {246}, year = {1979}, zbl = {0412.47013}, url = {http://geodesic.mathdoc.fr/item/MAN_1979__246_163339/} }
Fumio Kubo; Tsuyoshi Ando. Means of Positive Linear Operators.. Mathematische Annalen, Tome 246 (1979), pp. 205-224. http://geodesic.mathdoc.fr/item/MAN_1979__246_163339/