Red links in the references At the end of the article one has the following reference Larson Ron Hostetler Robert P and Edwards Bruce H 2003 Calculus of a Single Variable Early Transcendental Functions 3rd Edition Houghton Mifflin Company ISBN 061822307X textbook site online Now I have nothing against making red links which one day will become articles However I really doubt the links above will ever be filled and if yes if those will be good articles After all we are talking about a textbook among many Note that the link to Larson Ron is not red but all that article actually says is that Ron Larson wrote the Calculus of a Single Variable Early Transcendental Functions book And I doubt that guy did anything else as remarkable as to be worth writing in here I would say the links in that reference are reduntant What do you think