@article{MS2_1973__33_166309,
     author = {A.J. Ellis},
     title = {Some {Applications} of {Convexity} {Theory} to {Banach} {Algebras.}},
     journal = {Mathematica Scandinavica},
     pages = {23--30},
     publisher = {mathdoc},
     volume = {33},
     year = {1973},
     zbl = {0269.46035},
     url = {http://geodesic.mathdoc.fr/item/MS2_1973__33_166309/}
}