Title: Theoretical principles in astrophysics and relativity
Subjects: Astrophysics, Congresses, Relativity (Physics), Stars, Étoiles, Congrès, Astrophysique, Relativité, 39.22 astrophysics, Astrophysik, Relativitätstheorie, Kongress, Astrofysica, Relativiteitstheorie, RELATIVITY, CONFERENCES