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@article{AM2_1981__22_136871, author = {Charles B. Dunham}, title = {Rational approximation on subsets, {II.}}, journal = {Aequationes mathematicae}, pages = {165--172}, publisher = {mathdoc}, volume = {22}, year = {1981}, zbl = {0492.41039}, url = {http://geodesic.mathdoc.fr/item/AM2_1981__22_136871/} }
Charles B. Dunham. Rational approximation on subsets, II.. Aequationes mathematicae, Tome 22 (1981), pp. 165-172. http://geodesic.mathdoc.fr/item/AM2_1981__22_136871/