1. Università Cattolica del Sacro Cuore, Department of Statistical Sciences and Università della Svizzera italiana, Institute of Computational Science
2. Università della Svizzera italiana, Institute of Computational Science and Università dell’Insubria, Department of Science and High Technology
3. Aduno Gruppe, Viseca Card Services SA, Zurich, Switzerland and Aarhus University, Department of Economics and Business Economics
4. Aduno Gruppe, Viseca Card Services SA, Zurich, Switzerland