@article{10_4064_sm_24_1_13_23,
     author = {A. Kie{\l}basi\'nski},
     title = {On the iterative procedures of best strategy for inverting a self-adjoint positive-definite bounded operator in {Hilbert} space},
     journal = {Studia Mathematica},
     pages = {13--23},
     publisher = {mathdoc},
     volume = {24},
     number = {1},
     year = {1964},
     doi = {10.4064/sm-24-1-13-23},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-24-1-13-23/}
}