Published Online: Nov 04, 2020
Page range: 17 - 18
DOI: https://doi.org/10.2478/slgr-2020-0024
© 2020 Paweł Stacewicz et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.
Paweł Stacewicz 
Warsaw University of Technology,
Faculty of Administration and Social Sciences,
International Center for Formal Ontology
Marcin Koszowy
Warsaw University of Technology,
Faculty of Administration and Social Sciences,
International Center for Formal Ontology