@article{ITA_2004__38_1_3_0,
     author = {Bloom, Stephen L. and \'Esik, Zolt\'an},
     title = {Axiomatizing omega and omega-op powers of words},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     pages = {3--17},
     publisher = {EDP-Sciences},
     volume = {38},
     number = {1},
     year = {2004},
     doi = {10.1051/ita:2004005},
     mrnumber = {2059025},
     zbl = {1082.68070},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/ita:2004005/}
}