to say it forthright it's advertisement there is not the weakest hint that esc actually is so unequally better than c as the claims suggest it is an info page and not a stage for advertisement if the studies were provided if they exist at all the reader could judge himself and he could also have a close look at their potential weak points i have no problem with unreferenced texts but my credo is provide reliable refs or remove the passages to the talkpage or nirvana resp if there is a single one who mistrust them quality comes first p s i am quite well aquainted with wp