%0 Journal Article %A Sloboda, Fridrich %T An imperfect conjugate gradient algorithm %J Applications of Mathematics %D 1982 %P 426-432 %V 27 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/AM.1982.103989/ %R 10.21136/AM.1982.103989 %G en %F 10_21136_AM_1982_103989