Distributed applications and interoperable systems 18th IFIP WG 6.1 International Conference, DAIS 2018 : held as part of the 13th International Federated Conference on Distributed Computing Techniques, DisCoTec 2018, Madrid, Spain, June 18-21, 2018 : proceedings - Bonomi, Silvia; Rivière, Etienne (Springer, 2018)