Langenberg, Silke. «See–Recognise–Understand – A conversation about historical rendering techniques between Oskar Emmenegger, his son Rafael Emmenegger and Silke Langenberg», in: Annette Spiro, Hartmut Göhler und Pinar Gönül (Hg.), About Render. Designing and Realising Plaster Surfaces, München, 2023, S. 128–135.