@article{MS2_1975__37_166438,
     author = {N.Th. Varopoulos},
     title = {A theorem on operator algebras.},
     journal = {Mathematica Scandinavica},
     pages = {173--182},
     year = {1975},
     volume = {37},
     zbl = {0337.46041},
     url = {http://geodesic.mathdoc.fr/item/MS2_1975__37_166438/}
}