@article{ITA_2008__42_4_657_0, author = {Berstel, J. and Harju, T. and Karhum\"aki, J.}, title = {Preface}, journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications}, pages = {657--657}, publisher = {EDP-Sciences}, volume = {42}, number = {4}, year = {2008}, doi = {10.1051/ita:2008001}, zbl = {1168.68304}, mrnumber = {2434026}, language = {en}, url = {http://www.numdam.org/articles/10.1051/ita:2008001/} }