%0 Journal Article
%A Chartrand, Gary
%A Gavlas, Heather
%A Schulz, Kelly
%A Winters, Steve J.
%T On strong digraphs with a prescribed ultracenter
%J Czechoslovak Mathematical Journal
%D 1997
%P 83-94
%V 47
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMJ_1997__47_1_a5/
%G en
%F CMJ_1997__47_1_a5