There is 'dispute' [='debate'] among scholars as to the source of the text. = The source of the text is a matter/subject of 'dispute' among scholars.
The drug's effectiveness is 'beyond dispute'. [=it is certain that the drug is effective]
There was a 'dispute' [='disagreement'] 'over/about' what to do with the extra money.
(..) While we're waiting for Dad's lawyer to look this stuff over, we can at least get something going in the paper so people know' ' What? ' 'that this is in dispute. We're not starting a knife fight in . And we're not suing anybody. Why not? I don't understand, I don't understand. (..)2010 The Social Network