TY  - JOUR
AU  - Roland Freund
TI  - On Conjugate Gradient Type Methods and Polynomial Preconditioners for a Class of Complex Non-Hermitian Matrices.
JO  - Numerische Mathematik
PY  - 1990
SP  - 285
EP  - 312
VL  - 57
IS  - 6-7
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/NUMA_1990__57_6-7_133450/
ID  - NUMA_1990__57_6-7_133450
ER  -