Erik Daniel Zimmermann, G. Riccardi, M. Portapila. Italia. Bologna. (2006). First International Conference on Sustainable Irrigation Management. Technologies and Policies Sustainable Irrigation. Wessex Institute of Technology.
Erik Daniel Zimmermann, G. Riccardi, M. Portapila. Italia. Bologna. (2006). First International Conference on Sustainable Irrigation Management. Technologies and Policies Sustainable Irrigation. Wessex Institute of Technology.