@article{ITA_2012__46_1_67_0,
     author = {Ferenczi, S\'ebastien and Hubert, Pascal},
     title = {Three complexity functions},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     pages = {67--76},
     publisher = {EDP-Sciences},
     volume = {46},
     number = {1},
     year = {2012},
     doi = {10.1051/ita/2011126},
     mrnumber = {2904961},
     zbl = {1271.37012},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/ita/2011126/}
}