Privacy Technologies and Policy 7th Annual Privacy Forum, APF 2019, Rome, Italy, June 13-14, 2019, Proceedings - Naldi, Maurizio; Naldi, Maurizio; Italiano, Giuseppe F.; Italiano, Giuseppe F.; Rannenberg, Kai; Rannenberg, Kai; Medina, Manel; Medina, Manel; Bourka, Athena; Bourka, Athena (Springer International Publishing : Imprint: Springer, 2019)