%0 Journal Article
%A Queiró, João Filipe
%T Generalized approximation numbers
%J Portugaliae mathematica
%D 1985
%P 157-166
%V 43
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/PORMA_1985__43_1_114494/
%G en
%F PORMA_1985__43_1_114494