@article{MAN_1985__271_163962,
     author = {Sheldon Axler and Shapiro Joel H.},
     title = {Putnam's {Theorem,} {Alexander's} {Spectral} {Area} {Estimate,} and {VMO.}},
     journal = {Mathematische Annalen},
     pages = {161--184},
     publisher = {mathdoc},
     volume = {271},
     year = {1985},
     zbl = {0541.30021},
     url = {http://geodesic.mathdoc.fr/item/MAN_1985__271_163962/}
}