Research and practical issues of enterprise information systems 13th IFIP WG 8.9 International Conference, CONFENIS 2019, Prague, Czech Republic, December 16-17, 2019 : proceedings - Doucek, Petr 1960-; Basl, Josef; Tjoa, A Min 1952-; Raffai, Maria; Pavlíček, Antonín; Detter, Katrin (Springer, 2019)