%0 Journal Article
%A Somer, Lawrence
%A Křížek, Michal
%T The structure of digraphs associated with the congruence $x^k\equiv y \pmod n$
%J Czechoslovak Mathematical Journal
%D 2011
%P 337-358
%V 61
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.1007/s10587-011-0079-x/
%R 10.1007/s10587-011-0079-x
%G en
%F 10_1007_s10587_011_0079_x