@article{MZ_1971__119_171491,
     author = {Ryotaro Sato},
     title = {On {Weak} {Convergence} of {Norm} {Preserving} {Operators} on {L2} {(X)} and its {Application} to {Measure} {Preserving} {Transformations.}},
     journal = {Mathematische Zeitschrift},
     pages = {203--212},
     publisher = {mathdoc},
     volume = {119},
     year = {1971},
     zbl = {0198.46903},
     url = {http://geodesic.mathdoc.fr/item/MZ_1971__119_171491/}
}