Antonov, Alexander Alexandrovich. “Geophysical Researches of Portals Will Allow to Discover Invisible Universes and Explore Them”. European Journal of Applied Sciences 11, no. 2 (April 5, 2023): 370–391. Accessed November 27, 2024. https://journals.scholarpublishing.org/index.php/AIVP/article/view/14323.