According to PR-model, Stable “Inverse” Sandwich Complex with Unprecedented Organocalcium(I): Crystal Structures of [(thf)2Mg(Br)-C6H2-2,4,6-Ph3] and [(thf)3Ca{μ-C6H3-1,3,5-... is ranked 173,694th in multilingual Wikipedia, in particular this website is ranked 15,170th in German Wikipedia.