%0 Journal Article
%A Zhang, Ping
%T On $k$-strong distance in strong digraphs
%J Mathematica Bohemica
%D 2002
%P 557-570
%V 127
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.21136/MB.2002.133957/
%R 10.21136/MB.2002.133957
%G en
%F 10_21136_MB_2002_133957