%0 Journal Article %A Chen, Ke %T Discrete wavelet transforms accelerated sparse preconditioners for dense boundary element systems %J Electronic transactions on numerical analysis %D 1999 %P 138-153 %V 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/ETNA_1999__8__a1/ %G en %F ETNA_1999__8__a1