Publikacja jest dostępna w wersji elektronicznej w Open Access na licencji CC BY-NC-ND 4.0.

Research received external funding in project "ZUT 2.0 - Modern Integrated University",

The project is financed within the framework of the program of the Minister of Science and Higher Education under the name "Regional Excellence Initiative" in the years 2019-2022,

The project is financed within the statutory funds of the Institute of Management, University of Szczecin.