%0 Journal Article
%A Mateescu, Alexandru
%A Salomaa, Arto
%A Salomaa, Kai
%A Yu, Sheng
%T A sharpening of the Parikh mapping
%J RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications
%D 2001
%P 551-564
%V 35
%N 6
%I EDP-Sciences
%U http://archive.numdam.org/item/ITA_2001__35_6_551_0/
%G en
%F ITA_2001__35_6_551_0