Gravitation Astroparticle Physics Amsterdam is the research center in the Science Park, Amsterdam, Netherlands.
According to PR-model, grappa.amsterdam is ranked 2,508,782nd in multilingual Wikipedia, in particular this website is ranked 1,373,166th in English Wikipedia.
The website is placed before aeroclub-caen.org and after detaksumbar.com in the BestRef global ranking of the most important sources of Wikipedia.