@article{ITA_2006__40_1_1_0,
     author = {Lombardy, Sylvain and Mairesse, Jean},
     title = {Series which are both max-plus and min-plus rational are unambiguous},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     pages = {1--14},
     publisher = {EDP-Sciences},
     volume = {40},
     number = {1},
     year = {2006},
     doi = {10.1051/ita:2005042},
     mrnumber = {2197280},
     zbl = {1085.68081},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1051/ita:2005042/}
}