Distributed Applications and Interoperable Systems 19th IFIP WG 6.1 International Conference, DAIS 2019, Held as Part of the 14th International Federated Conference on Distributed Computing Techniques, DisCoTec 2019, Kongens Lyngby, Denmark, June 17-21, 2019, Proceedings - Pereira, José; Pereira, José; Ricci, Laura; Ricci, Laura (Springer International Publishing : Imprint: Springer, 2019)