@article{DAN_1983_273_3_a8,
     author = {M. F. Yakovlev},
     title = {Conditions for termination of the two-step iteration processes},
     journal = {Doklady Akademii Nauk},
     pages = {546--548},
     publisher = {mathdoc},
     volume = {273},
     number = {3},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1983_273_3_a8/}
}