@article{ETNA_1999__8__a1,
     author = {Chen,  Ke},
     title = {Discrete wavelet transforms accelerated sparse preconditioners for dense boundary element systems},
     journal = {Electronic transactions on numerical analysis},
     pages = {138--153},
     year = {1999},
     volume = {8},
     zbl = {0974.65043},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ETNA_1999__8__a1/}
}