Marques Rui C and J Monteiro Ant?Nio (2004). “Benchmarking the Economic Performance of Portuguese Water and Sewerage Services.” in Emrouznejad A and V Podinovski (eds.) Proceedings of DEA2004, Birmingham, UK: 63.
Marques Rui C and J Monteiro Ant?Nio (2004). “Benchmarking the Economic Performance of Portuguese Water and Sewerage Services.” in Emrouznejad A and V Podinovski (eds.) Proceedings of DEA2004, Birmingham, UK: 63.