Information Technology for Management: Emerging Research and Applications 15th Conference, AITM 2018, and 13th Conference, ISM 2018, Held as Part of FedCSIS, Poznan, Poland, September 9-12, 2018, Revised and Extended Selected Papers - Ziemba, Ewa; Ziemba, Ewa (Springer International Publishing : Imprint: Springer, 2019)