@article{ITA_2000__34_5_373_0, author = {Justin, Jacques}, title = {On a paper by {Castelli,} {Mignosi,} {Restivo}}, journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications}, pages = {373--377}, year = {2000}, publisher = {EDP Sciences}, volume = {34}, number = {5}, mrnumber = {1829233}, zbl = {0987.68056}, language = {en}, url = {https://www.numdam.org/item/ITA_2000__34_5_373_0/} }