TY - JOUR AU - S.L. Lee AU - Roger C.E. Tan AU - W.S. Tang TI - L2-approximation by the translates of a function and related attenuation factors. JO - Numerische Mathematik PY - 1991 SP - 549 EP - 568 VL - 60 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/NUMA_1991__60_4_133606/ ID - NUMA_1991__60_4_133606 ER -