This article is unavailable. Bucher, H.F., Wrobel, L.C., Mansur, W.J. and Magluta, C., Fast Solution of Problems with Multiple Load Cases by Using Wavelet-Compressed Boundary Element Matrices, Communications in Numerical Methods in Engineering, Vol. 19, 387-399, 2003. If you wish to obtain a copy please contact the author below: Luiz.Wrobel@brunel.ac.uk