TY - JOUR AU - Kolomý, Josef TI - Necessary and sufficient conditions for some convergence methods JO - Czechoslovak Mathematical Journal PY - 1966 SP - 446 EP - 453 VL - 16 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1966.100742/ DO - 10.21136/CMJ.1966.100742 LA - en ID - 10_21136_CMJ_1966_100742 ER -