@misc{seraphine2026ludics,
  author = {Seraphine, Frederic},
  title = {Ludics},
  note = {Concept note},
  year = {2026},
  url = {https://www.fredericseraphine.com/publications/ludics/},
  language = {en},
  keywords = {ludics, interactions as signs, actum, tactum, factum, Peircean semiotics, game design, Ludic Framework}
}