“Meteorological Data and Spectral Analyses of Non-Equilibrium Processes in Water During the Total Solar Eclipse of 11.08.1999 in Bulgaria”. Ukrainian Journal of Physics 69, no. 2 (March 20, 2024): 96. Accessed September 10, 2026. https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2023295.