@article{ITA_2002__36_2_129_0,
     author = {Aceto, Luca and \'Esik, Zolt\'an and Ing\'olfsd\'ottir, Anna},
     title = {A fully equational proof of {Parikh's} theorem},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     pages = {129--153},
     publisher = {EDP-Sciences},
     volume = {36},
     number = {2},
     year = {2002},
     doi = {10.1051/ita:2002007},
     zbl = {1024.68070},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/ita:2002007/}
}