@article{KUIPM_1981_a6,
     author = {S. N. Perfilov},
     title = {Efficiency of one class of iterative processes},
     journal = {Issledovaniya po Prikladnoi Matematike i Informatike},
     pages = {48--56},
     publisher = {mathdoc},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUIPM_1981_a6/}
}