About this article
Published Online: Dec 08, 2020
Page range: 97 - 121
DOI: https://doi.org/10.2478/awutm-2019-0009
© 2019 Gheorghe Păun, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Gheorghe Păun
Romanian Academy
Bucharest, Romania