seeking fic in languages besides English

A friend of mine is starting her Ph.D. dissertation on fanfiction and derivative literature, and she's looking for examples of fic in other languages. Can anybody recommend authors who write fanfic in languages besides English? Or archives of non-English fic?

It doesn't matter what language it's in, or what fandom, or even if the fic is particularly good. She just wants some proof that fanfic exists as a phenomenon in languages other than English, and she doesn't know where to start looking.

Many thanks.