%0 Journal Article %A A. B. Kycherov %A A. Bastis %T Fast iterative methods for solving in the real arithmetic the discrete Helmholtz equation with a~complex coefficient %J Matematičeskoe modelirovanie %D 1991 %P 115-121 %V 3 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM_1991_3_1_a12/ %G ru %F MM_1991_3_1_a12