Lauwers L, VAN Huylenbroeck Guido and TIM Coelli (2004). “Materials Balance-Based Modelling of Environmental Efficiency.” in Emrouznejad A and V Podinovski (eds.) Proceedings of DEA2004, Birmingham, UK: 237.
Lauwers L, VAN Huylenbroeck Guido and TIM Coelli (2004). “Materials Balance-Based Modelling of Environmental Efficiency.” in Emrouznejad A and V Podinovski (eds.) Proceedings of DEA2004, Birmingham, UK: 237.