@article{KUIPM_1980_a4,
     author = {S. N. Perfilov},
     title = {One method for the solution of a linear operator equation},
     journal = {Issledovaniya po Prikladnoi Matematike i Informatike},
     pages = {23--28},
     publisher = {mathdoc},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUIPM_1980_a4/}
}