1. Department of Mathematics University of Trento Trento Italy
2. Laboratory of Applied Mathematics, DICAM University of Trento Trento Italy
3. Department of Environmental and Prevention Sciences University of Ferrara Ferrara Italy
4. U.O. di Medicina Interna, Ospedale di Rovereto Azienda Sanitaria per i Servizi Provinciali di Trento Trento Italy
5. Department of Engineering University of Ferrara Ferrara Italy
6. National Laboratory for Scientific Computing Petròpolis Brazil