TY - JOUR AU - Surla Katarina TI - An a posteriori error estimation and acceleration of the nonstationary iterative procedure in a case when an eigenvalue and corresponding eigenelement of the operator are known JO - Novi Sad Journal of Mathematics PY - 1980 SP - 123 EP - 136 VL - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/NSJOM_1980_10_Nonea_14/ ID - NSJOM_1980_10_Nonea_14 ER -