1. Department of Mathematics, School of Sciences and Technology University of Évora Évora Portugal
2. Research Center in Mathematics and Applications (CIMA) University of Évora Évora Portugal
3. NOVA School of Science and Technology (FCT NOVA) NOVA University Lisbon Caparica Portugal
4. Center for Mathematics and Applications (CMA) NOVA University Lisbon Caparica Portugal
5. DEIO, Faculty of Sciences University of Lisbon (FCUL) Lisbon Portugal
6. Center of Statistics and Applications University of Lisbon (CEAUL) Lisbon Portugal