This issue was made possible with the financial support of the Bulgarian National Science Fund under Contract No. KP-06-NP6/56, "Bulgarian Scientific Periodicals Competition – 2025."
Author: The Bulgarian National Science Fund is not responsible for the content of the published texts.
Abstract
This issue was made possible with the financial support of the Bulgarian National Science Fund under Contract No. KP-06-NP6/56, "Bulgarian Scientific Periodicals Competition – 2025." The Bulgarian National Science Fund is not responsible for the content of the published texts.