TY - GEN AU - Hackbusch, W AU - Trottenberg, U TI - Multigrid methods: proceedings of the conference held at KoÃŒÂ(ln-Porz, November 23-27, 1981 SN - 3540119558 (Berlin) PY - 1982/// CY - Berlin PB - Springer-Verlag KW - Differential equations, Partial KW - Numerical solutions KW - Congresses KW - Numerical analysis ER -