Institut Wohnen und Umwelt GmbH, Bibliothek is the library in Germany.
According to PR-model, iwu.de is ranked 241,492nd in multilingual Wikipedia, in particular this website is ranked 21,911th in German Wikipedia.
The website is placed before kennelclubargentino.org.ar and after un.am in the BestRef global ranking of the most important sources of Wikipedia.