%0 Journal Article
%A Urszula Wilczyńska
%T Approximate of functions of two variables
%J Fundamenta Mathematicae
%D 1979
%P 98-109
%V 104
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/fm-104-2-98-109/
%R 10.4064/fm-104-2-98-109
%G en
%F 10_4064_fm_104_2_98_109