%0 Journal Article %A Babuška, Ivo %T Über universal optimale Quadraturformeln %J Applications of Mathematics %D 1968 %P 304-338 %V 13 %N 4 %U http://geodesic.mathdoc.fr/articles/10.21136/AM.1968.103177/ %R 10.21136/AM.1968.103177 %G de %F 10_21136_AM_1968_103177