TY - RPRT TI - The Sixth Copper Mountain Conference on Multigrid Methods, part 1 AU - Melson, N. Duane AU - Manteuffel, T. A. AU - Mccormick, S. F. PY - 1993 UR - https://ntrs.nasa.gov/citations/19940019200 ID - 19940019200 ER -