Reflection from black holes and space-time topology

Reflection of electromagnetic waves from mixtures of plane gravitational and scalar waves

Reflection on event horizon and escape of particles from confinement inside black holes

Reflection, radiation and interference for black holes

Reflections on Cosmology: an Outsider's Point of View

Reflections on three debated issues

Reformulation and Interpretation of SMS Braneworld

Refraction of geodesics by impulsive spherical gravitational waves in constant-curvature spacetimes with a cosmological constant

Refractive gravitational waves and quantum fluctuations

Refringence, field theory, and normal modes

Refutation of C. W. Misner's claims in his article ``Yilmaz Cancels Newton''

Regge calculus and Ashtekar variables

Regge Calculus as a Fourth Order Method in Numerical Relativity

Regge calculus from a new angle

Regge Calculus in Teleparallel Gravity

Regge calculus in the canonical form

Regge calculus: a unique tool for numerical relativity

Regge gravity from spinfoams

Regge poles of the Schwarzschild black hole: a WKB approach

Regge-Teitelboim Goedetic Brane Gravity and Effective Cosmology