Observatoire de la petite sirène is the collective in France founded by Céline Masson, Caroline Eliacheff, Anna Cognet.
According to PR-model, observatoirepetitesirene.org is ranked 1,595,418th in multilingual Wikipedia, in particular this website is ranked 163,409th in French Wikipedia.
The website is placed before alt-ebensee.at and after civil-rights-law.com in the BestRef global ranking of the most important sources of Wikipedia.