TY - JOUR AU - Lubinsky, D.S. TI - Bernstein's weighted approximation on $\Bbb R$ still has problems JO - Electronic transactions on numerical analysis PY - 2006 SP - 166 EP - 177 VL - 25 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ETNA_2006__25__a20/ LA - en ID - ETNA_2006__25__a20 ER -