%0 Journal Article
%A Păun, Gheorghe
%T Two infinite hierarchies of languages defined by branching grammars
%J Kybernetika
%D 1978
%P 397-407
%V 14
%N 6
%U http://geodesic.mathdoc.fr/item/KYB_1978_14_6_a1/
%G en
%F KYB_1978_14_6_a1