@article{DAN_1971_199_1_a0,
     author = {N. A. Bobylev},
     title = {On the theory of factormethods for approximate solution of nonlinear problems},
     journal = {Doklady Akademii Nauk},
     pages = {9--12},
     publisher = {mathdoc},
     volume = {199},
     number = {1},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1971_199_1_a0/}
}