%0 Journal Article %A A. Kiełbasiński %T On the iterative procedures of best strategy for inverting a self-adjoint positive-definite bounded operator in Hilbert space %J Studia Mathematica %D 1964 %P 13-23 %V 24 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-24-1-13-23/ %R 10.4064/sm-24-1-13-23 %G en %F 10_4064_sm_24_1_13_23