@article{ZVMMF_1993_33_1_a0,
     author = {V. P. Il'in},
     title = {The rate of convergence of iterations of implicit incomplete factorization methods},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {3--11},
     publisher = {mathdoc},
     volume = {33},
     number = {1},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1993_33_1_a0/}
}