Critical Information Infrastructures Security 13th International Conference, CRITIS 2018, Kaunas, Lithuania, September 24-26, 2018, Revised Selected Papers - Luiijf, Eric; Luiijf, Eric; Žutautaitė, Inga; Žutautaitė, Inga; Hämmerli, Bernhard M.; Hämmerli, Bernhard M. (Springer International Publishing : Imprint: Springer, 2019)