TY - JOUR AU - Mastroianni, G. TI - Polynomial inequalities, functional spaces and best approximation on the real semiaxis with Laguerre weights JO - Electronic transactions on numerical analysis PY - 2002 SP - 142 EP - 151 VL - 14 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ETNA_2002__14__a5/ LA - en ID - ETNA_2002__14__a5 ER -