%0 Journal Article
%A S. V. Sevast'yanov
%T Some generalizations of the Johnson problem
%J Diskretnyj analiz i issledovanie operacij
%D 1981
%P 45-61
%N 21
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DA_1981_21_a6/
%G ru
%F DA_1981_21_a6