In addition to what others have said, there are lots of reasons to cite something that don't need that work to be correct. You cite works that inspire yours, ev

In addition to what others have said, there are lots of reasons to cite something that don't need that work to be correct. You cite works that inspire yours, even if they're not peer-reviewed. You cite works that ask questions you answer, as evidence that the problem is worth addressing. You cite papers that are works in progress but are related to what you are doing and are useful to give a reader background. Sometimes you intentionally cite mistaken work specifically so that you can correct it.