Rob Smith wrote:
Now, how do we actually define an "obsolete or deprecated" source? Does the original author have to deprecate themself, or by what standard can it be considered deprecated? Secondly, one man's obsolete is another man's current news. When current scholarship renders a half century of reputable, WP:ATT, etc citations obsolete, although some material from the older literate *still* has value, how do we mark as obsolete and deprecated older citations that are errantly being used to refute newer scholarship?
It's not up to us to do this. If there is someplace that says that the idea has become obsolete or deprecated, Just site the source in the same way that you would anything else. If someone is claiming that an old source refutes a new one the citations for the two will still show dates of pubblication.
Ec