Digital transformation for a sustainable society in the 21st century 18th IFIP WG 6.11 Conference on e-Business, e-Services, and e-Society, I3E 2019, Trondheim, Norway, September 18–20, 2019 : proceedings - Pappas, Ilias O.; Mikalef, Patrick; Dwivedi, Yogesh K.; Jaccheri, Letizia; Krogstie, John 1967-; Mäntymäki, Matti (Lecture notes in computer science, 2019)