%0 Journal Article
%A Greibach, S. A.
%T One counter languages and the chevron operation
%J RAIRO. Informatique théorique
%D 1979
%P 189-194
%V 13
%N 2
%I EDP-Sciences
%U http://www.numdam.org/item/ITA_1979__13_2_189_0/
%G en
%F ITA_1979__13_2_189_0