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@article{MT_1985_6_a2, author = {H. Ya. Bulgakov and S. K. Godunov}, title = {Allowance for computational errors in a variant of the conjugate gradient method}, journal = {Matemati\v{c}eskie trudy}, pages = {38--55}, publisher = {mathdoc}, volume = {6}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MT_1985_6_a2/} }
H. Ya. Bulgakov; S. K. Godunov. Allowance for computational errors in a variant of the conjugate gradient method. Matematičeskie trudy, Tome 6 (1985), pp. 38-55. http://geodesic.mathdoc.fr/item/MT_1985_6_a2/