TY - JOUR AU - Zítko, Jan TI - Combining the preconditioned conjugate gradient method and a matrix iterative method JO - Applications of Mathematics PY - 1996 SP - 19 EP - 39 VL - 41 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/AM.1996.134311/ DO - 10.21136/AM.1996.134311 LA - en ID - 10_21136_AM_1996_134311 ER -