Publikacja jest dostępna w Open Access na licencji reative Commons Attribution License 4.0 (Attribution 4.0 International, CC BY 4.0. Received: May 20, 2021. Revised: August 20, 2021. Accepted: August 23, 2021. Published: August 26, 2021. 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, |
