android APP: https://drive.google.com/file/d/1T0-9v84dvWJIBzY97SuUw3l0vANuu3Ot/view?usp=share_link
windows APP: https://drive.google.com/file/d/19ObIPTrEk0OnGVOZyEHzKVc99VdFL3_U/view?usp=share_link
paper: https://www.researchgate.net/publication/350617258_Gravitational_Fields_and_Gravitational_Waves