Authors
Institute of Information and Communication Technologies, Bulgarian Academy of Sciences, Sofia, Bulgaria
Faculty of Mathematics and Informatics, Sofia University “St. Kliment Ohridski”, Sofia, Bulgaria
© 2021 Piotr Dworniczak, Lilija Atanassova, Nora Angelova, published by Bulgarian Academy of Sciences, Institute of Information and Communication Technologies
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.