@article{ZNSL_1978_80_a9,
     author = {G. V. Savinov},
     title = {Generalized method of conjugate gradients for the solution of linear systems},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {181--188},
     publisher = {mathdoc},
     volume = {80},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1978_80_a9/}
}