Eiichi AKAHO. Gravity, Antigravity, and Gravitational Shielding Along with Related Prospective Viewpoints and Possible Practical Applications: An Overview. Current Approaches in Science and Technology Research Vol. 14, [S. l.], p. 11–35, 2021. DOI: 10.9734/bpi/castr/v14/11281D. Disponível em: https://stm.bookpi.org/CASTR-V14/article/view/2994. Acesso em: 13 jun. 2026.