2020 –
* this website presents the artistic practice of the artist after he gave up his legal name in autumn 2020.
  http://un.titled.be/ing / @unknown.artists.collective



  1982 – 2020
* this website presents the artistic practice of stefan riebel (1982–2020).
  it is no longer updated after the artist gave up his legal name in autumn 2020.
  www.stefanriebel.de