Halecki, Wiktor http://orcid.org/0000-0001-7802-2849
Klatka, SÅ‚awomir
Article History
Received: 10 July 2020
Accepted: 29 December 2020
First Online: 18 January 2021
Compliance with Ethical Standards
:
: The authors declare that there is no conflict of interest. Authors have been actively involved in making a substantial scholarly contribution to the design and completion of this research, interpretation of data and conclusions, assisted in drafting and revising the paper.