Tkach, M., V. Jagoda, I. Tkach, O. Bondarenko, M. Tkach, and Y. Bondarenko. “The Influence of Gravitational Interaction on the Regional and Global Balance of Forces in the World”. Political Science and Security Studies Journal, vol. 3, no. 2, June 2022, pp. 20-25, doi:10.5281/zenodo.6801664.