%0 Journal Article
%A Guoce Xin
%A Jing-Feng Xu
%T A short approach to Catalan numbers modulo \(2^r\)
%J The electronic journal of combinatorics
%D 2011
%V 18
%N 1
%U http://geodesic.mathdoc.fr/articles/10.37236/664/
%R 10.37236/664
%F 10_37236_664