Informatics in Economy 15th International Conference, IE 2016, Cluj-Napoca, Romania, June 2-3, 2016, Revised Selected Papers - Silaghi, Gheorghe Cosmin; Silaghi, Gheorghe Cosmin; Buchmann, Robert Andrei; Buchmann, Robert Andrei; Boja, Catalin; Boja, Catalin (Springer International Publishing : Imprint: Springer, 2018)