%0 Journal Article %A Anna Kamont %T General Haar systems and greedy approximation %J Studia Mathematica %D 2001 %P 165-184 %V 145 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm145-2-5/ %R 10.4064/sm145-2-5 %G en %F 10_4064_sm145_2_5