%0 Journal Article
%A Havel, Ivan
%A Zelinka, Bohdan
%T On 2-periodic graphs of a certain graph operator
%J Discussiones Mathematicae. Graph Theory
%D 2001
%P 13-30
%V 21
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DMGT_2001_21_1_a1/
%G en
%F DMGT_2001_21_1_a1