@article{SJVM_1998_1_4_a3,
     author = {V. P. Il'in and K. Yu. Laevskii},
     title = {On incomplete factorization methods with generalized compensation},
     journal = {Sibirskij \v{z}urnal vy\v{c}islitelʹnoj matematiki},
     pages = {321--336},
     publisher = {mathdoc},
     volume = {1},
     number = {4},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SJVM_1998_1_4_a3/}
}