1. Dipartimento di Idraulica, Trasporti ed Infrastrutture Civili and Idraulica e Ambiente; Water and Environment Research Center, Politecnico di Torino; Torino Italy
2. Institute of Hydromechanics and Water Resources Management; Eidgenossische Technische Hochschule Zurich; Zurich Switzerland
3. Department of Civil and Environmental Engineering; Duke University; Durham North Carolina USA