W. Hackbusch
1948
Oxford user's guide to mathematics
Advances in multi-grid methods
Elliptic differential equations
Hierarchische Matrizen
Integral equations
Iterative solution of large sparse systems of equations
Multigrid Methods II
Multigrid methods III
Adaptive Methods--Algorithms, Theory and Applications
Fast Solvers for Flow Problems
Integralgleichungen
Multi-grid methods and applications