Title: Proceedings of the XXIII Spanish Relativity Meeting on Reference Frames and Gravitomagnetism
Subjects: Celestial reference systems, Congresses, Electromagnetism, Gravitational fields, SCIENCE, Astronomy, Astronomy, Space & Time, Astrophysics, Mathematics for scientists & engineers, Relativity physics, Astrophysics & Space Science, Cosmology (Astronomy), Theoretical Physics, Relativity, Science/Mathematics, Physics, Cosmology, Astronomy - General, Applied, Gravitation