Gas- und Wärme-Institut Essen is the facility in Essen, Germany.
According to PR-model, gwi-essen.de is ranked 1,851,873rd in multilingual Wikipedia, in particular this website is ranked 232,072nd in German Wikipedia.
The website is placed before e-horyzont.pl and after grootmoor.de in the BestRef global ranking of the most important sources of Wikipedia.
