@article{GDZPPN002359286,
title = {Operator means, fixed points, and the norm convergence of monotone approximants.},
journal = {Mathematica Scandinavica},
volume = {61},
year = {1987},
pages = {202-218},
zbl = {0663.47017},
url = {http://dml.mathdoc.fr/item/GDZPPN002359286}
}
Green, William L.; Morley, T.D. Operator means, fixed points, and the norm convergence of monotone approximants.. Mathematica Scandinavica, Tome 61 (1987) pp. 202-218. http://gdmltest.u-ga.fr/item/GDZPPN002359286/