P. Contucci, A. Omicini, D. Pianini, and A. S\^ırbu. The Future of Digital Democracy: An Interdisciplinary Approach, volume 11300 of Lecture Notes in Computer Science, Springer, (January 2019)
D. Pianini, and A. Omicini. The Future of Digital Democracy: An Interdisciplinary Approach, volume 11300 of Lecture Notes in Computer Science, chapter 6, Springer, (January 2019)