The paper "Testing General Relativity with past and present Astrophysical Observations" co-authored by several Gr@v members, is one of CQG's highlights for 2015.
The paper is an extensive review on how several alternative models to General Relativity can be constrained by astrophysical observations and was led by Emanuele Berti. Gr@v members C. Herdeiro, E. Radu, J. Rosa and M. Sampaio, as well as former members, F. Coelho, J. C. Degollado and M. Zilhão have also contributed to this community effort which has, by now, become a standard reference in the field.