TY - JOUR AU - W. Hackbusch AU - Z.P. Nowak TI - On the Fast Matrix Multiplication in the Boundary Element Method by Panel Clustering. JO - Numerische Mathematik PY - 1989 SP - 463 EP - 492 VL - 54 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/NUMA_1989__54_3_133328/ ID - NUMA_1989__54_3_133328 ER -