TY - JOUR AU - Aceto, Luca AU - Ésik, Zoltán AU - Ingólfsdóttir, Anna TI - A fully equational proof of Parikh's theorem JO - RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications PY - 2002 SP - 129 EP - 153 VL - 36 IS - 2 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/ita:2002007/ DO - 10.1051/ita:2002007 LA - en ID - ITA_2002__36_2_129_0 ER -