@inproceedings {1363, title = {On Weighted T-Systems}, booktitle = {III Jornadas de Concurrencia}, year = {1993}, pages = {293-312}, publisher = {Universidad Polit{\'e}cnica de Valencia}, organization = {Universidad Polit{\'e}cnica de Valencia}, address = {Valencia, Spain}, author = {E. Teruel and P. Chrzastowski and J.M. Colom and M. Silva} }