%0 Journal Article %A S.L. Lee %A Roger C.E. Tan %A W.S. Tang %T L2-approximation by the translates of a function and related attenuation factors. %J Numerische Mathematik %D 1991 %P 549-568 %V 60 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/NUMA_1991__60_4_133606/ %F NUMA_1991__60_4_133606