%0 Journal Article
%A Lyu, Zhenhua
%T Extremal Digraphs Avoiding Distinct Walks of Length 4 with the Same Endpoints
%J Discussiones Mathematicae. Graph Theory
%D 2022
%P 985-1004
%V 42
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DMGT_2022_42_3_a18/
%G en
%F DMGT_2022_42_3_a18