%0 Journal Article %A A. I. Serdyukov %T Extremal problems on permutations for special classes of matrices %J Diskretnyj analiz i issledovanie operacij %D 1990 %P 57-60 %N 30 %I mathdoc %U http://geodesic.mathdoc.fr/item/DA_1990_30_a6/ %G ru %F DA_1990_30_a6