Eiichi Akaho. Gravity, Antigravity, and Gravitational Shielding Along with Related Prospective Viewpoints and Possible Practical Applications: An Overview. CASTR-V14 [Internet]. 2021 Aug. 6 [cited 2026 Jun. 13];:11-35. Available from: https://stm.bookpi.org/CASTR-V14/article/view/2994