Acknowledgements

Research and preparatory work for the Database has been performed by Claudia Morini (Scuola Superiore Sant’Anna), Alice Riccardi (Uninettuno University), Susanna Villani (University of Bologna), Chiara Macchi (Scuola Superiore Sant’Anna) and Emanuele Sommario (Scuola Superiore Sant’Anna), under the latter’s scientific supervision.