%0 Journal Article %A Wang, James Li-Ming %T Approximation on Boundary Sets %J Canadian mathematical bulletin %D 1979 %P 377-379 %V 22 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1979-049-1/ %R 10.4153/CMB-1979-049-1 %F 10_4153_CMB_1979_049_1