@article{ITA_2004__38_1_19_0,
     author = {Brandt, Ulrike and Delepine, Ghislain and Walter, Hermann K.-G.},
     title = {Weightreducing grammars and ultralinear languages},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     pages = {19--25},
     publisher = {EDP-Sciences},
     volume = {38},
     number = {1},
     year = {2004},
     doi = {10.1051/ita:2004001},
     mrnumber = {2059026},
     zbl = {1084.68058},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/ita:2004001/}
}