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@article{MAN_1958__135_160604, author = {Quigley. F.}, title = {Approximation by {Algebras} of {Functions.}}, journal = {Mathematische Annalen}, pages = {81--92}, publisher = {mathdoc}, volume = {135}, year = {1958}, zbl = {0080.09802}, url = {http://geodesic.mathdoc.fr/item/MAN_1958__135_160604/} }
Quigley. F. Approximation by Algebras of Functions.. Mathematische Annalen, Tome 135 (1958), pp. 81-92. http://geodesic.mathdoc.fr/item/MAN_1958__135_160604/