1. Barnett-Page, E., and J. Thomas. 2009. Methods for the synthesis of qualitative research: a critical review. BMC Medical Research Methodology 9 (1): 1–11.
2. Bartosiewicz, A. 2014. Terminal operating systems as a tool to support entrepreneurship and competitiveness of seaports. Przedsiębiorczość i Zarządzanie 15: 175–187.
3. Basias, N., and Y. Pollalis. 2018. Quantitative and qualitative research in business & technology: justifying a suitable research methodology. Review of Integrative Business and Economics Research 7: 91–105.
4. Bessid, S., A. Zouari, A. Frikha, and A. Benabdelhafid, A. 2020. Smart ports design features analysis: a systematic literature review. In Proceedings of Conference Internationale De Modelisation et Simulation (MOSIM), held on November 12–14, Agadir, Morocco, pp. 1–10.
5. Boyer, S.A. 2009. SCADA: Supervisory control and data acquisition. USA: International Society of Automation.